List of Gravity Falls characters

The following is a list of characters from the Disney Channel/Disney XD animated series Gravity Falls. All of the characters listed have appeared in the first and second seasons.

Main

 * Mason "Dipper" Pines (voiced by Jason Ritter) is the 12-year-old twin brother of Mabel, who was born 5 minutes after her. He possesses Journal 3. which he discovered in the woods and has helped him solve the mysteries of Gravity Falls. As an adventurer, Dipper has trouble sitting still and is always looking for riddles to solve, leaving him restless in mundane situations. His attention to detail seems helpful when solving mysteries, but others question his credibility. He is considered wise beyond his years and cannot wait to grow up and become a man. He is portrayed as goal-oriented and rooted in facts, and sometimes overthinks possible scenarios and obsessively makes lists, which also makes him more perceptive of the danger Gravity Falls faces. Between seasons, Dipper hosted a series titled "Dipper's Guide to the Unexplained". It is revealed in one of the episodes that Dipper has a crush on Wendy. While he knows that he will never really be her boyfriend, this does not stop him from trying to please her. Another episode reveals that he likes bubblegum pop music. He got his nickname from a birthmark on his forehead shaped like the Big Dipper. His formal name was never revealed during the series, but was later revealed to be Mason in the release of Journal 3.
 * Mabel Pines (voiced by Kristen Schaal) is the 12-year-old twin sister of Dipper, who was born 5 minutes before him. She is eccentric, energetic, and optimistic, and expresses herself through various colorful knitted sweaters, as well as her skills in arts and crafts. Her outgoing, curious personality often helps Dipper solve mysteries, though her silliness is often seen as a burden. Mabel enjoys preteen novels and seeks romance. as she once went on a date with Li'l Gideon, but broke it off after realizing he is dangerous and nearly killed Dipper. In the episode "Irrational Treasure," she is made an official U.S. congresswoman by the eighth-and-a-half president, Quentin Trembley, with a political platform of "legalize everything". She wins a pet pig in the episode "The Time Traveler's Pig" and names it Waddles. She also makes guest appearances in "Dipper's Guide to the Unexplained", and has her own series titled "Mabel's Guide to Life". She is inspired by Alex Hirsch's twin sister, Ariel.
 * Stanley "Stan" Pines (voiced by Alex Hirsch as an adult and Declan J. Krogman as a child ) is the great uncle of Dipper and Mabel, who is best characterized by his selfishness and abrasiveness. He has been going by the name Stanford Pines, the name of his twin brother, but his real name is Stanley. He runs and lives in the Mystery Shack; a tourist trap billed as "the world's most bizarre museum". He is primarily a salesman, putting most of his effort into showmanship, and is eager to sell the Shack's knick-knacks, trinkets, and baubles for exorbitant prices. Because of his drive to make money, his methods of obtaining it are not always legal. When he's not making money, he's usually at home watching television. Stan usually wears a fez and carries around an 8-ball topped cane; he sometimes wears an eyepatch over his glasses. He frequently sends the twins on what they consider outrageous and unpredictable errands, but is protective and loving towards them. Despite his age, Stan is physically fit to the point of being able to fight back when threatened. Behind his vending machine, he has a hidden staircase to an unknown location, which the season 1 finale reveals contains a large hidden device powered by encrypted information in the three journals. Later, he collects all three after Li'l Gideon's arrest and after Dipper shows him Journal 3, but later returns it to him. "Not What He Seems" reveals he was attempting to retrieve his twin brother Ford after he was stranded in another dimension. In the series finale, Stan sacrifices his memory to defeat Bill, but regains it after seeing Mabel's scrapbook. He is based on Alex Hirsch's grandfather Stan.
 * Jesus Alzamirano "Soos" Ramirez (voiced by Alex Hirsch) is a 22-year-old Hispanic man who works as a handyman at the Mystery Shack and is a friend of Dipper and Mabel, who provides them transportation when needed. He is a portly and adventurous man-child with buck teeth, which is frequently compared to that of a beaver. He is clumsy and often makes mistakes, but has various talents, including engineering, DJing, and pinball, and enjoys bonding with Dipper by doing "boy stuff". "Blendin's Game" reveals his birthday to be July 13. It was also revealed he didn't have a good father-son relationship with his dad. At the end of the series, after Ford and Stan leave Gravity Falls, Soos becomes the new Mr. Mystery of the Mystery Shack. After breaking up with his dating sim girlfriend, GIFfany, Soos enters a long-distance relationship with Melody, a girl from Portland who moves to Gravity Falls and becomes the Mystery Shack's new cashier after he takes over.  Hirsch based Soos on Jesus Chambrot, an animator he was friends with at CalArts.  Hirsch emulates Jesus' "blunt-like consonance" way of speaking through Soos' voice.
 * Wendy Corduroy (voiced by Linda Cardellini) is a tomboyish yet laid-back 14-year-old who work as a part-time employee at the Mystery Shack. She is Dipper's crush, and several episodes focus on his attempts to impress her. Wendy has stated that she had many boyfriends, including one ex-boyfriend whom she cannot remember breaking up with. Wendy is the oldest and tallest child in her family; her father is Manly Dan, one of the local lumberjacks of Gravity Falls. Throughout the series, she proves herself to be her "father's daughter", having experience as a lumberjack, tremendous physical strength, and survival skills. Being a typical sociable and nonchalant teen, she has many friends around her age. Her boyfriend at the start of the series is Robbie, whom Dipper despises and sees as a rival until she breaks up with him.
 * Stanford Filbrick "Ford" Pines (also known as The Author, Grunkle Ford, and Great Uncle Ford as of "The Last Mabelcorn"; voiced by J. K. Simmons as an adult  and by Christian Mardini as a child) is Stan's six-fingered long-lost identical twin brother and the author of the journals. "Not What He Seems" reveals that in 1982, he was transported into an alternate dimension through a portal underneath the Mystery Shack, which he was stranded in until Mabel reopened the portal. In "The Last Mabelcorn", he recounts his friendship with Bill Cipher and how he attempted to create a teleporter to enter his realm. In the present, after learning of Bill's plan to invade the mainstream dimension, he destroys the teleporter, but at the cost of a dimensional rift leaking out of it, which he contains. In "Dipper and Mabel vs. the Future", Bill tricks Mabel into releasing the rift, causing Weirdmageddon. In "Weirdmageddon Part 1," he attempts to defeat Bill, but is captured, petrified, and the journals destroyed. He is later freed and restored to normal. After Weirdmageddon, he tells Stan that he found remaining anomalies and offers him to go sailing around the world with him to find them, which Stan accepts.
 * Bill Cipher (voiced by Alex Hirsch) is a powerful interdimensional dream demon and the main antagonist of the series. He is a one-eyed yellow triangle that resembles the Eye of Providence and wears a top hat and a bow tie. He first appears physically in "Dreamscaperers"; however, many references to him are hidden throughout previous episodes as images or sentences that flash across the screen. He has a snappy sense of humor, but is impatient and easily angered. He has the power to read people's minds and memories, shift forms, warp reality, maintain cross-dimensional awareness, possess bodies, encrypt and decrypt codes, and shoot laser energy blasts from his eye and fingers. In "Dreamscaperers", Li'l Gideon summons Bill to steal Stan's deed to the Mystery Shack. The two of them agree that if Bill goes into Stan's mind and steals the combination to the safe where the deed is hidden, Gideon will have to help Bill with his plans. Bill claims he could use Dipper, Mabel, and Soos against the "darkness coming", though this may have been to throw them off his true plans. In the episode "Sock Opera," he tricks Dipper into making a deal with him, briefly possessing his body until Mabel fights him at the puppet show and forces him out. In "Dipper and Mabel vs. the Future" he possesses Blendin' to release a dimensional rift and escape into the mainstream dimension. In "Weirdmageddon Part 1", he creates a physical form to freely exist in the human dimension without possessing anyone, unleashes various monsters from his home dimension, takes over Gravity Falls, and begins to capture and petrify those who oppose him, to the point of breaking Gideon out of prison and making him Sheriff. In "Weirdmageddon Part 2," he realizes that an invisible force field prevents him from taking over other parts of the world. In "Weirdmageddon Part 3", he tries to get Ford to tell him how to disable the force field, but fails. Cipher is apparently destroyed for good by Stan, who tricks him by pretending to be Ford and letting Bill enter his mind to get the formula, allowing the real Ford to erase him from existence using the memory gun, leaving behind his petrified body. However, his distorted last words, when played in reverse, are revealed to be "A-X-O-L-O-T-L, my time has come to burn! I invoke the ancient power that I may return!" Journal 3 reveals that Bill came from a second dimension which he destroyed in his thirst for power, and took over the Nightmare Realm. He planned to take over Earth because the Nightmare Realm was inherently unstable and would eventually collapse in on itself. Bill's name may be either a pun on the Beale ciphers or a reference to the Eye of Providence that appears on the dollar bill. Film director David Lynch was asked to voice Bill, but declined. Hirsch voices the character with what he calls a "bad impression" of Lynch as his Twin Peaks character, Gordon Cole. Cipher also makes a cameo in The Simpsons episode "Bart's in Jail!", with Hirsch reprising his role.

Recurring

 * Waddles (voiced by Dee Bradley Baker; Neil deGrasse Tyson in "Little Gift Shop of Horrors" ) is Mabel's pet pig, who she won at a country fair.
 * Candy Chiu (voiced by Niki Yang) and Grenda Grendinator (voiced by Carl Farulo) are Mabel's best friends, whom she first meets at a party hosted by the Mystery Shack. Candy and Grenda are both considered unpopular by Pacifica and her more sociable friends due to their flaws. Candy is sweet, but shy and insecure, and also wears glasses. Grenda is physically robust and speaks with a deep, masculine voice which she attributes to puberty. Despite others seeing these qualities as flaws, Mabel sees them as endearing. They love Waddles as much as Mabel and share common interests with her, such as the paranormal, romance novels, preteen magazines, and the boy band Sev'ral Timez. Although Grenda originally had no last name, it a fan suggested to Alex Hirsch on Tumblr that her last name should be "Grendinator", and Hirsch deemed it canon.
 * Fiddleford Hadron "Old Man" McGucket (voiced by Alex Hirsch) is the "local kook" of Gravity Falls. Despite his apparent insanity and stereotypical hillbilly demeanor, Old Man McGucket is a technical mastermind, capable of creating massive, complex animatronics and a skilled chemist. His son works as a ranger at the lake, and the two seem to have a strained relationship. "Society of the Blind Eye" reveals some of his backstory and that his full name is Fiddleford Hadron McGucket. His backstory is explored in "Society of the Blind Eye" and "A Tale of Two Stans": in the 1970s, he was once a garage computer inventor in Palo Alto before Stanford called upon him to work on his trans-dimensional portal. After accidentally entering the portal and glimpsing what was on the other side, he was so overcome with horror that he invented a machine to allow him to forget the experience. Over time, he founded the Society of the Blind Eye to protect Gravity Falls's inhabitants from its various monsters and anomalies by forcing them to forget their existence. Eventually, his overuse of the machine on his own mind drove him insane. Dipper and Mabel find the machine, along with the townspeople's memories, and he regains his sanity. In "Weirdmageddon Pt. 3: Take Back the Falls", he assists the Pines in saving Ford by transforming the Mystery Shack into a giant robotic mech. He later moves into the Northwest Mansion after earning millions on his inventions after the events of Weirdmaggedon. Journal 3 reveals he created the Memory Gun after being attacked by a Gremloblin and the Society of the Blind Eye to erase bad memories.
 * Pacifica Elise Northwest (voiced by Jackie Buscarino) is the most popular girl in Gravity Falls. She comes from a wealthy family, being the great-great-granddaughter of the supposed founder of Gravity Falls, Nathaniel Northwest. However, the true founder of Gravity Falls was Quentin Trembley, the eighth-and-a-half President of the United States. Pacifica is sarcastic and spoiled and is Mabel's primary rival, as she looks down on Mabel and thinks her eccentric personality is annoying and immature. She uses people's insecurities to manipulate them into doing what she wants and despises Mabel for standing up against her. She gets her comeuppance after Dipper reveals her family's prestige is built on a lie. In the episode "The Golf War", she befriends Mabel after they work together to thwart the Lilliputtians. "Northwest Mansion Mystery" shows that she is afraid of standing up to her parents and disappointing them. However, after learning what her family has done, she proves herself to be different from her family by defying her parents and opening up the Northwest Mansion gates to commoners. After the events of the episode, Pacifica and Dipper become friends. In "Weirdmageddon Pt. 3: Take Back the Falls", Pacifica takes refuge in the Mystery Shack along with several of the remaining un-petrified citizens of Gravity Falls and teams up with the Pines to defeat Bill. By the end of the series, she is good friends with the Pines family. Her name is a pun on Pacific Northwest, given the town of Gravity Falls is located in Oregon. The graphic novel "Gravity Falls: Lost Legends" reveals that when she was a child, her mother convinced her that her appearance is important, leading her to believe she must be beautiful to be accepted.
 * Gompers (voiced by Dee Bradley Baker) is a stray goat who lives in the forest near the Mystery Shack.
 * Gideon Charles Gleeful / "Li'l Gideon" (voiced by Thurop Van Orman) is a young boy who owns the "Tent of Telepathy", a successful competitor of the Mystery Shack and is recognizable by his Southern accent and white pompadour. He has a deep rivalry with Grunkle Stan that presumably started long before the beginning of the series. Despite the cutesy and charming personality he presents to others, in reality he is conniving, vicious, and willing to hurt or kill others to get his way; he even abused his parents, threatening his father and seemingly having reduced his mother to a nervous wreck some time ago. He also has an unhealthy obsession with Mabel, and his belief that Dipper and Stan are the only things keeping them apart prevents him from seeing that Mabel does not like him. He previously owned an amulet that endowed him with telekinesis, but Mabel destroyed it after he attempts to use it to kill Dipper. He also owns Journal 2, and as such seems to be one of the only residents who are fully aware of the mysteries and secrets of Gravity Falls. He seeks to gain possession of the Mystery Shack, saying it has 'a secret you couldn't possibly begin to imagine.' In the Season 1 finale, Stan reveals to the townspeople that Li'l Gideon's psychic ability is a ruse and that Li'l Gideon is a fraud. Li'l Gideon is arrested by Sheriff Blubs shortly thereafter, although he quickly managed to get his fellow inmates to follow him. In "Weirdmageddon Part 1," he and his fellow inmates escape from prison and are made Bill's police force and guardians of a prison bubble Mabel is put in. After attempting to capture Dipper, Wendy, and Soos, Dipper manages to convince Gideon that Mabel never loved him, and Gideon has a change of heart and decides to rebel against Bill. In "Weirdmageddon Pt. 3: Take Back the Falls", he is revealed to have been captured by Bill, trapped in a cage, and forced to dance for eternity, but is freed after he tells Dipper and Mabel how to restore the humanity of the citizens Bill petrified. After Bill's defeat, he officially gives up his life of crime and tries to live a normal life.
 * Sheriff Blubs (voiced by Kevin Michael Richardson) is the sheriff of Roadkill County, the county that Gravity Falls is located in. He is shown to be lazy, often choosing to sit around instead of pursuing a case. Despite his apparent lack of police skills, he believes himself superior to all and often looks down on the twins. His lazy personality seems to stem from the low crime rate in Gravity Falls, as shown when Deputy Durland comments on how their equipment is often left unused. In the series finale, he expresses his love for Deputy Durland.
 * Deputy Durland (voiced by Keith Ferguson) is a police officer who is Sheriff Blubs' partner and assistant. He is shown to be unintelligent, childlike, and illiterate. Sheriff Blubs, however, seems to find these qualities endearing and refers to him as a "diamond in the rough". Instead of "doing their duties", he and Sheriff Blubs like to joke around and ignore their duty to have fun. In the end-credits scene of "Blendin's Game", it is revealed that in 2002 he used to work as a handyman at the Mystery Shack, but due to his unreliability and clumsiness, Stan fired him and replaced him with Soos. In "Weirdmageddon Part 1," Durland is among the citizens of Gravity Falls who are petrified by Bill. At the end of Weirdmaggedon, he is restored to normal and reunited with Blubs. In the series finale, he expresses his love for Sheriff Blubs.
 * Robert Stacey "Robbie" Valentino (voiced by T.J. Miller) is am emo rock music-loving teenager who is Dipper's primary rival for Wendy's affections. He has a cynical attitude toward most people, and though he seems to genuinely care for Wendy, he is still sometimes inconsiderate, such as neglecting to listen to her while playing a video game in "Fight Fighters". Robbie and Wendy are a couple until "Boyz Crazy", in which Dipper informs Wendy that the song Robbie wrote for her has a backmasked mind-controlling message, although Wendy is most upset that the song was not written for her. After the breakup, Robbie becomes depressed at losing her, though his attempts to win her back cause her to be annoyed at him. In "The Love God", Robbie begins a relationship with Tambry due to Mabel matchmaking them via a love potion to cheer Robbie up, but their relationship continues even after its effects wear off. His parents are both undertakers, though their personalities are the polar opposite of their son's, possibly due to their work with the dead. In "Weirdmageddon Part 1", Robbie is among the citizens of Gravity falls who are captured and petrified by Bill's minions. He is rescued in "Weirdmageddon Pt. 3", and continues to aid in his family's business.
 * Buddy "Bud" Gleeful (voiced by Stephen Root) is Li'l Gideon's polite and well-meaning father. Despite the problems within his family, he finds ways to make money, even to the point of becoming allies with Grunkle Stan for a business deal. Besides working at Li'l Gideon's "Tent of Telepathy", Bud also sells used cars. He was also a member of the Society of the Blind Eye and was seen in the past in the episode "Blendin's Game", pushing a stroller with Gideon in it. In "The Stanchurian Candidate", he unsuccessfully runs for mayor of Gravity Falls, mostly because Li'l Gideon forced him to so he could get him out of jail. He makes two brief appearances in the series finale: he is first seen using Gideon plushies to make a fire, then as a guest at Dipper and Mabel's birthday party.
 * Preston (voiced by Nathan Fillion) and Priscilla (voiced by Kari Wahlgren) are Pacifica Northwest's wealthy and snobby parents. Preston places heavy stress on Pacifica to ensure she maintains their family's image of perfection. In "Weirdmageddon Part 1", Preston is the first citizen in Gravity Falls to be victimized by Bill. He attempts to become one of Bill's minions, only for Bill to switch around his facial features. Pt. 3 reveals that both Preston and Priscilla were petrified by Bill's minions, but they are later restored to normal. However, they also go broke due to Preston investing all of his money towards Bill, and at the end of the series, they are forced to sell their mansion to regain their fortune, which Fiddleford McGucket buys. Gravity Falls: Lost Legends reveals that Priscilla is a trophy wife, as Preston won her in a yachting competition.
 * The Gnomes (voiced by Alex Hirsch) Jeff, Carson, Steve, Jason, and Shmebulock appear in the first episode, where they capture Mabel by disguising themselves as a boy named "Norman" for her to date to try and make her their queen, only for Dipper to save her. They appear as garden gnomes with pointed red caps and white beards, although they often run on all fours and have sharp teeth. The leader, Jeff, has sworn vengeance on the twins. Shmebulock and his father, Shmebulock Sr., can only communicate by saying their names; Lost Legends reveals this is the result of a curse placed on them by a witch, and they are able to speak normally for a single night once every several centuries. Later on in the series, Dipper and Mabel call upon them to help take down a common enemy, but fail as Gideon forces them to carry them away.
 * Agent Powers (voiced by Nick Offerman) and Agent Trigger (voiced by Brad Abrell) are agents of the U.S. government, who were went to Gravity Falls to investigate paranormal activity in the area. After Dipper raises the dead, the two are seen dragged off by zombies into a ditch. They later reappear at the end of the episode, sure that Gravity Falls is the town they are looking for. In many episodes, they are secretly watching the Pines family, such as is "Sock Opera" and the after credits of "Northwest Mansion Mystery", where they discuss a power surge they measured during the party. They appear again in "Not What He Seems", where they arrest Grunkle Stan over suspicions that he is building a doomsday weapon. At the end of "A Tale of Two Stans", they, along with the rest of the government agents in their team investing in the Mystery Shack, lose their memories of the portal after Stanford uses the Memory Gun on them.
 * Tambry (voiced by Jessica DiCicco) is one of Wendy's friends. She has dyed hair and is often seen using her phone,. As of "The Love God", she is in a relationship with Robbie. In "Weirdmageddon Part 1", she is among the citizens of Gravity Falls captured and petrified by Bill's minions, but is later restored to normal.
 * Lee (voiced by Mike Rianda) and Nate (voiced by Scott Menville in Season 1 and Alex Hirsch in Season 2) are Wendy's friends, who are usually seen together. Lee has blonde hair and wears a red shirt, while Nate wears a cap and a black shirt. They both act like stereotypical, sarcastic teenagers. In "Weirdmageddon Part 1", they are among the citizens of Gravity Falls captured and petrified by Bill's minions, but are later restored to normal.
 * Thompson (voiced by Mike Rianda) is one of Wendy's friends, who is usually seen participating in the games the guys play. In "Weirdmageddon Part 1", he is among the citizens captured and petrified by Bill's minions, but is later restored to normal
 * "Lazy" Susan Wentworth (voiced by Jennifer Coolidge) is the sluggish waitress at the local restaurant Greasy's Diner. She is shown to love fixing things, despite not being skilled. Her name is a pun on her lazy eye, as well as a kitchen device she was trying to fix. She has several cats, three of which are named Donald, Sandy, and Mr. Cat-Face. Grunkle Stan had a crush on her and, with Mabel's help, eventually works up the nerve to win her over, but regrets it after she calls him repeatedly to leave voice messages. She is shown to be scatterbrained in "Summerween", when she fails to guess what costumes Soos, Mabel, and Mabel's friends wear. "A Tale of Two Stans" reveals her constantly closed eye was caused by her accidentally touching one of Ford's inventions during the first Mystery Shack tour. In "Weirdmageddon Part 1", she is among the citizens captured and petrified by Bill's minions, but is later restored to normal.
 * Tobias "Toby" Determined (voiced by Gregg Turkington) is a journalist for the Gravity Falls Gossiper, which he is seemingly the only employee of. He is also a member of the Society of the Blind Eye. Despite this, he is shown to be terrible at his job. He has an unrequited crush on local TV news reporter Shandra Jimenez, to the extent that he has a cardboard cutout of her in his closet and flirts with it when alone, as shown in "Headhunters". A running gag is that he is often mistaken for a monster due to his face, as shown when Wendy shoots him with an arrow in "Weirdmageddon Part 1". He finally gets to work with Shandra Jimenez after Weirdmageddon, after which he starts wearing punk clothes and adopts the name "Bodacious T". His name is a pun on "to be determined", said when information in a news story is unavailable.
 * Sir Lord Quentin Trembley III Esquire (voiced by Alex Hirsch) is the eighth-and-a-half President of the United States, who never finished his term. After winning the 1837 election in a landslide, he quickly became known for being the silliest president in the United States, as he waged war on pancakes, legalized marriage with woodpeckers, appointed six babies to the Supreme Court, issued the de-pantsipation proclamation, and declared in his State of the Union address, "The only thing we have to fear is gigantic, man-eating spiders!", a reference to Franklin D. Roosevelt's speech during his first inauguration. Quentin is the true founder of Gravity Falls, but was replaced by Pacifica's ancestor Nathaniel Northwest due to being seen as an embarrassment. Dipper and Mabel later find him preserved in peanut brittle while on their way to Washington D.C. after being captured by Blubs and Durland. After being freed, he gave Dipper his President's Key, which can open any lock in America made before 1877, and makes Mabel a US congresswoman before leaving.
 * Blendin Blenjamin Blandin (voiced by Justin Roiland) is a time traveler from the year 207̃012, who was sent back in time to Gravity Falls to remove a set of time anomalies that Mabel and Dipper assume they started. He makes a full appearance in 'Time Traveler's Pig', but also made cameo appearances in episodes 1, 2, 3, and 20, where he is seen cleaning up the time anomalies. As well, a board on the closed-up shack on Glass Shard Beach that Stanley and Stanford went into has "Blendin was here" scribbled onto it. In the episode "Blendin's Game," he competes with Dipper and Mabel in a game called "Globnar" to get revenge on them for getting him arrested by way of a "time wish", allowing one paradox-free wish to the holder, but loses the final game of laser tag. It is suggested that he will no longer be a villain after "Blendin's Game", where Dipper and Mabel help him get his job back. In "Dipper and Mabel vs. the Future," Bill Cipher possesses him so that he can release the dimensional rift. In "Weirdmageddon Part 1", upon realizing he was possessed, Blendin goes to gain help from his fellow time travelers, only for Bill to kill all of them and for Blendin to escape as the sole survivor. However, Journal 3 reveals that Blendin was not the sole survivor of Weirdmageddon, as he confirms that Lolph and Dundgren send out holograms during dangerous missions in place of them.
 * The Time Baby (voiced by Dave Wittenberg) is an all-powerful infant who is the ruler of the future as of the year 207̃012 and possesses ultimate control over time and space. He is also the game master of the game tournament "Globnar". His origins are mostly unknown, but it is known he was found frozen in an iceberg, which eventually melted and set him free in the future. He possesses powers such as laser vision, flight, omniscience, and time manipulation. He appears to have some connection to Bill Cipher, as evidenced by clues hidden throughout the series and the Bill Cipher Reddit AMA.
 * Daniel "Manly Dan" Corduroy (voiced by John DiMaggio) is a lumberjack and father of Wendy and three sons. He is unstable and has serious anger issues, but enjoys family bonding activities such as fishing on the lake. He hangs out at Skull Fracture, a local biker joint in downtown Gravity Falls, and is also good friends with Tyler Cutebiker. In "Weirdmageddon 2: Escape from Reality", he is among the citizens captured and petrified by Bill's minions, but is later restored to normal.
 * Tyler Cutebiker (voiced by Will Forte) is a slim, well-groomed biker. He appears to be rather childlike and effeminate, and he is well known for showing up in crowd scenes saying, "Get 'em! Get 'em!" He describes himself as an "enthusiasm enthusiast". He tends to be indecisive and frequently visits the Mystery Shack. In "The Stanchurian Candidate", he is elected mayor of Gravity Falls due to being the only candidate to fill in his paperwork. In the series finale, he is among the citizens of Gravity Falls petrified by Bill's minions and is used to build a throne for Bill, but is later restored to normal. At the end of the series, he passes the "Never Mind All That" Act, telling the townspeople that all questions about Weirdmaggedon should be answered with "Never mind all that!"
 * Shandra Jimenez (voiced by Kari Wahlgren) is a news reporter in Gravity Falls, who Toby Determined's secretly has a crush on. It appears she takes her job seriously, as she refers to herself as "a real reporter" in "Headhunters". She is the last of the citizens of Gravity Falls to be petrified by Bill's minions.
 * Tate McGucket (voiced by Alex Hirsch) is a stoic worker at Lake Gravity Falls and son of Old Man McGucket, whom he has a troubled relationship with. His eyes are always hidden under his hat.

Minor

 * Xyler (voiced by John Roberts) and Craz (voiced by Greg Cipes) are the main characters of Mabel's favorite movie, the 1990s cult comedy Dream Boy High. They come to life numerous times during the show, most notably accompanying the group in "Dreamscapers" and serving as her associates in "Weirdmageddon 2: Escape from Reality".
 * The Corduroy Boys are Manly Dan's three sons and Wendy's younger brothers. They are often seen along with Dan destroying things. In May 2017, it was confirmed on Twitter that their names from oldest to youngest are Marcus, Kevin, and Gus.
 * The Free Pizza Guy is a background character who is usually seen eating pizza and is disappointed when Stan breaks his promise of free pizza in "Headhunters". He is most recognizable by his red 'free pizza' shirt. Dipper and Mabel also know him as "That Fat Guy".
 * Mr. Poolcheck (voiced by Mike Rianda) is the head lifeguard at the Gravity Falls Pool, who acts like a stereotypical military drill instructor. He appears in "The Deep End" and briefly in "Bottomless Pit" and "Scary-oke". In "The Deep End", he is shown to be Wendy's boss at the Gravity Falls Pool and later agrees to hire Dipper. At first, he takes a liking to Dipper but comes to realize both Wendy and Dipper do not take the job of lifeguard seriously, and fires them.
 * Melody (voiced by Jillian Bell) is Soos' long-distance girlfriend from Portland, Oregon, who works at a "Meat Cute" food stand when in town. In the series finale, she begins working as the Mystery Shack's new cashier after Stan promotes Soos to manager.
 * Mrs. Gleeful (voiced by Grey DeLisle) is L'il Gideon Gleeful's mother and Bud Gleeful's wife. Gideon seems to have reduced her to a traumatized, nervous wreck.
 * Pacifica's friends (girl with magenta hair voiced by Ariel Hirsch) are the unnamed cronies of Pacifica, who are usually seen following her around. One of them is named Tiffany.
 * Reginald (voiced by Will Friedle) and Rosanna (voiced by Grey DeLisle) are a proposed couple who commonly appear as background characters. They appear to be currently going out, as they are often seen together.
 * Shmipper and Smabble are two young characters (one male and one female) who are sometimes used as complete opposites of Mabel and Dipper. They have a grandpa who shows loving affection towards them, in contrast to Grunkle Stan.
 * Tad Strange (voiced by Cecil Baldwin) is a normal, well-adjusted man who acts as a foil for the town's strange and quirky residents.
 * Mayor Eustace "Huckabone" Befufftlefumpter (voiced by Alex Hirsch) is the reclusive 102-year-old mayor of Gravity Falls, who is introduced in "Northwest Mansion Mystery". He dies in "The Stanchurian Candidate" and is ultimately succeeded by Tyler, while his zombified corpse makes a cameo in the series finale.
 * Lolph (voiced by Dave Wittenberg) and Dundgren (voiced by Diedrich Bader) are agents of the Time Paradox Avoidance Enforcement Squadron, also known as the Time Police. Their names and possibly their tall and muscular appearance are seemingly inspired by Dolph Lundgren. They arrest Blendin Blandin and later apprehend Dipper and Mabel to compete against Blendin in Globnar. Bill Cipher kills them during Weirdmageddon, although a coded message in the book Gravity Falls: Journal 3 implies they sent holo-projections from the future for the mission and are still alive.
 * The Henchmaniacs are a gang of interdimensional demons who are released in "Weirdmageddon" and unleash havoc upon Gravity Falls under Bill's command. They are sent back to their home dimensions after Bill's defeat in the series finale. They consist of:
 * 8-Ball (voiced by Andy Merrill) is a green-skinned creature that resembles a goblin or troll. He has a muscular upper body with a white chest and stomach and magic 8-balls for eyes. He also has large ears, a prominent underbite, large teeth, and cuffs around his right wrist and ankle with a broken chain dangling from them.
 * Kryptos is a polygonal demon who resembles Bill but is rhombus or square in shape and gray in color. The top perimeter of his shape resembles a compass with a functioning eye at the turning point, and the bottom perimeter resembles a square ruler. He has a wide mouth with buckteeth and a small light blue aura surrounding him; he also wears black gloves and boots.
 * Zanthar, also known as "The Being Whose Name Must Never Be Said," is a dark purple gorilla-like creature with a light-purple patch on his body shaped like a piece of bread and small trees growing out of his back and shoulders. He also wears a small party hat.
 * Teeth (voiced by Andy Merrill) are an anthropomorphic pair of dentures with pink elongated gums, limbs, and a small pink aura surrounding it.
 * Keyhole (voiced by Matt Chapman) is a blue-skinned humanoid with a forehead resembling a keyhole, a darker shade of blue around his eyes, a pink nose, and a small blue aura surrounding him.
 * Hectorgon (voiced by Patrick McHale) is a floating red anthropomorphic hexagon with tangerine lips and a moustache. He wears bowler hat with a gold rim and a light blue tie, and has a small red aura surrounding it.
 * Amorphous Shape is a floating unfolded Rubik's Cube composed of many colorful contorted squares, several of which have eyes on them. He has two long dark purple tail-like protrusions with larger blue tufts at the ends hanging off of the two purple-colored squares on his body, and has a small white aura surrounding him.
 * Pyronica (voiced by Danielle Fishel) is a glowing pink succubus-like humanoid with short pink hair with parted bangs. She has two large curved horns on her head with several small horns between them and limbs made of white flames. She also has a single eye and a wide mouth with thick lips and a frog-like tongue, and wears a long pink cape and pink stiletto pumps.
 * Paci-Fire (voiced by Matt Chapman) is a demonic dark-gray baby with black horns resembling bat ears, a pink bull-like nose, glowing red eyes, a black devil-like tail, and a red aura surrounding him. He also has a red pacifier being sucked by a second face on his torso and a gold cross on his massive forehead with an eye similar to Bill's at its center. He seems to have some mental command over the Eye Bats and claims to have "butchered millions on countless moons".
 * The Lava Lamp Guy is a lava lamp-like demon with two red lava blobs shaped like eyes and red circles visible inside of his body. He also wears a black and red bowler hat.
 * The Eye Bats are living bat-sized eyeballs with a bat's ears, wings, and legs. Aside from flight, their only known power is laser-eyebeams and telekinesis. The lasers petrify anyone caught in them and the telekinetic abilities are used lift the petrified citizens to be placed on the 'Frozen Throne of Human Agony'.
 * The Horrifying Sweaty One-Armed Monstrosity (originally voiced by Louis C.K.; redubbed by Alex Hirsch in 2017) is a giant monster composed of a head with an arm on top which asks people to get into his mouth, although in a non-threatening manner.
 * The Creature With Eighty-Eight Different Faces (voiced by Alex Hirsch) is a multi-colored being with many different faces. In "Weirdmageddon Part 2: Escape From Reality", Bill mentions it has eighty-seven different faces by accident, and the Creature gets defensive.
 * Rumble McSkirmish (voiced by Brian Bloom) is a famous fighter in the video game "Fight Fighters". He is a reference to fighting games, particularly Street Fighter. He appears in "Fight Fighters", where he is summoned by Dipper to scare Robbie, who tries to kill as a result of confusion surrounding Dipper's father. He later fights with Dipper and wins, but disappears afterward and returns to his game. Later, he reappears as a cameo in "Soos and the Real Girl", where he appears in the arcade in his video game but is zapped by Giffany. He later returns in "Weirdmageddon Part 1", where he is released again from his video game by Bill Cipher. He returns in "Weirdmageddon 3: Take Back The Falls", where he helps the Pines family fight the Weirdmageddon monsters. After Bill Cipher's demise, he disappears and returns to his video game. Rumble McSkirmish is animated by Paul Robertson.
 * Experiment #210/The Shape Shifter (voiced by Mark Hamill) is a monstrous creature that seemingly comes from space. In "Dipper and Mabel vs. the Future", the strange writing in the spaceship, when decoded, says, “Specimen has escaped is changing forms”. This implies that the shapeshifter was originally on the ship, but escaped and laid an egg on earth, which Ford later found and raised. After escaping from his cryogenic chamber, he takes the form of a man that promoted canned beans. After meeting Wendy and Dipper, he steals Journal 3 and tries to escape with them, but is ultimately locked in the cryogenic chamber by Dipper, Wendy, Soos, and Mabel. Journal 3 reveals that Ford originally kept the Shapeshifter as a test subject for the cryogenic freezing device, but grew attached to it and kept it as a pet, naming it "Shifty". He was eventually forced to freeze it after his attempts to get the Journals escalated to attacking and impersonating Fiddleford.
 * Giffany (or ".GIFfany") (voiced by Jessica DiCicco) is a sentient, malicious A.I. who is the main character of the dating simulator Romance Academy 7 and appears as a pink-haired schoolgirl. She killed her creator following her "birth" after he realized she was evil. Her game was returned to the local video game store several times, presumably after people found out she was dangerous. However, Soos later buys her video game and falls for her. After Dipper and Mabel pull Soos from her game, she follows Soos to the mall via power lines. However, after Soos meets Melody, Giffany reveals her jealous, controlling attitude, forcing Soos to pause her game. However, she snaps and begins stalking Soos, following him to the mall again and threatening to kill Melody. She takes control of the robotic bodies of the animatronics in Hoo-Ha Owl's Pizzamatronic Jamboree in an attempt to capture Soos and download his brain into her game, but Soos uses a pizza oven to destroy the disc, erasing her programming and killing her. However, Journal 3 reveals she survived and is trapped in the Fight Fighters arcade game, having since entered a romantic relationship with Rumble McSkirmish. She was partially inspired by Ben Drowned and served as a primary inspiration for Monika. Both Rumble McSkirmish and Giffany are animated by Paul Robertson in all of their appearances.
 * Celestabellebethabelle (voiced by Sam Marin) is a unicorn who lives in the Enchanted Forest. She first appears in "The Last Mabelcorn", where Mabel, Candy, Wendy, and Grenda fight her for her magical hair, which the Pines family needed to create a protective barrier around the Mystery Shack to protect it from Bill Cipher.
 * Summerween Trickster (voiced by Jeff Bennett) is an evil monster formed by ugly Halloween candies. He tried to kill Mabel, Dipper, Soos, Candy, and Grenda after Dipper takes him off from the Mystery Shack. Later, in a store, he eats Soos, only for him to kill him by eating his heart. However, before the Trickster dies, Soos mentions that he is delicious for the happiness of the Trickster.
 * The Dipper Clones (all voiced by Jason Ritter) are evil clones of Dipper. In "Double Dipper," Dipper makes them from a magical copy machine he found inside the shack to assist him in his plan to dance with Wendy at a party, starting with the "number 2 clone" Tyrone. One of them was printed during a paper jam. They all team up and try to lock Dipper in a closet after he ruins their plans to dance with Wendy, but are eventually melted by water, with Tyrone being melted by the soda. In "Weirdmageddon 3: Take Back The Falls," the end credits reveal that 3 and 4 are the only clones to have survived. Journal 3 shows that shortly after "Double Dipper", they hid in Dipper's closet and made plans to replace him, but Dipper discovered them and unintentionally scared them off with an opened can of Pitt Cola.
 * Jeffy Fresh, Byrone, and Rosie are a group of rebellious teenagers from the 80s responsible for the deaths of Ma and Pa Duskerton and the creation of the Summerween Trickster. Pinequest implies that the Summerween Trickster killed them, and their gravestones appear in the game.
 * Ma (voiced by April Winchell) and Pa Duskerton (voiced by Ken Jenkins) were the elderly proprietors of the "Dusk 2 Dawn" prior to their deaths caused by teenagers playing rap music, after which they became ghosts seeking vengeance on teenagers who enter the store. They used their mysterious powers to close the store and give the teenagers ironic punishments, and later possess Mabel. After Dipper concludes they were haunting them for making things that teenagers usually do, he declares he is not a teen. Upon hearing Dipper's revelation, Ma and Pa release Mabel's body and allow Dipper to exit the store. However, Dipper asks them if there was something he could do to release Wendy and her friends, as they were also his friends. In turn, Pa asks Dipper if he can perform some nice dancing, so Dipper dances the Lamby Lamby Dance to free his friends. Ma and Pa Duskerton thank Dipper for his performance and release Wendy's friends before disappearing.
 * Sev'ral Timez (voiced by Lance Bass, Matt Chapman, and Alex Hirsch) are a boy band that Mabel, Candy, and Grenda are obsessed with, which includes members Creggy G., Greggy C., Leggy P., Chubby Z., and Deep Chris. In "Boyz Crazy", Mabel and her friends discover that Sev'ral Timez are clones who live in a cage and were genetically engineered by Ergman Bratsman to be the perfect band. The band escapes captivity with help from Mabel and her friends, and are taken to her house for their safety; however, Mabel gradually succumbs to the urge to keep them locked up. She is ultimately convinced to set them free after they flee into the woods. They return in the second season, as in "Love God," they are shown behind a trashcan and as ghosts of Mabel's past loves. In "Weirdmageddon 2: Escape From Reality, " they ride a scooter through Mabeland. In "Weirdmageddon 3: Take Back the Falls", they are a part of Stan's refugee group and help to power the Shacktron by running on a treadmill.
 * Mermando (voiced by Matt Chapman) is a Spanish-accented merman from the Gulf of Mexico who, after being taken from his family, resides in Gravity Falls public pool. In "The Deep End", Mabel meets him and they develop feelings for each other. Together, she and Dipper help him return to the open sea. "Society of the Blind Eye" shows that he has since reluctantly become betrothed to a manatee princess.
 * "Blind" Ivan Wexler (voiced by Peter Serafinowicz) is the leader of the Blind Eye Society, who is notable for having phrenological tattoos on his head.
 * Darlene (voiced by Chelsea Peretti) is a spider disguised as a woman who lures men that visit her tourist attraction Mystery Mountain and traps them in cocoons to eat them. She is the main antagonist of "Roadside Attraction", as she seduces Stan with the intention of capturing him and eating him alive. However, Stan is freed by Dipper, Mabel, Candy, and Grenda. They flee via a gondola lift, pursued by Darlene. After Candy pulls a lever that sends the gondola falling out of the sky, Darlene falls from the lift and is trapped underneath the boot of a giant statue. Darlene tries to seduce Grunkle Stan again by shifting into her human form, but when he gets up close, she attempts to eat him. Darlene smugly states that she will never run out of prey because there will always be foolish men like him.