List of Jellystone! characters

Jellystone! is an American animated comedy series developed by C. H. Greenblatt for HBO Max (now Max). The series is produced by Warner Bros. Animation and features reimagined versions of various characters by Hanna-Barbera. It premiered on July 29, 2021. Below is a list of characters that appear in the show.

Jellystone Hospital

 * Yogi Bear (voiced by Jeff Bergman ) - A brown bear who is a doctor at Jellystone Hospital. He is self-assured, though a goofball. His first love is food, and crazy schemes will sometimes come into play in order to get his paws on some goodies. Originally from The Huckleberry Hound Show and The Yogi Bear Show.
 * Boo Boo (voiced by C.H. Greenblatt ) - A brown bear who is a nurse at Jellystone Hospital. He is Yogi's mild-mannered sidekick, legal spouse (for tax purposes), housemate, and best buddy. Though somewhat meek and less prone to wackiness, he is loyal to his more off-the-wall friends. Originally from The Huckleberry Hound Show and The Yogi Bear Show.
 * Cindy Bear (voiced by Grace Helbig ) - A brown bear who is a doctor at Jellystone Hospital and the town's only brilliant scientist. She completes the trio of hospital bears, at times acting as the team's take-charge leader. Her obsession with dangerous inventions and unauthorized medical procedures typically leads to chaos. However, when her ideas backfire, she will often feign ignorance. Originally from The Yogi Bear Show.
 * Ranger Smith (voiced by Jeff Bergman ) - The hospital administrator. Originally from The Yogi Bear Show.
 * Winsome Witch (voiced by Lesley Nicol ) - A witch who runs the hospital cafeteria. Originally from The Secret Squirrel Show segment with the same name. Unlike her original counterpart, Winnie speaks with a British accent. Her role is significantly reduced in the third season to the point of having no speaking lines.

Jellystone City Hall

 * Huckleberry Hound (voiced by Jim Conroy ) - A Bluetick Coonhound who is the Mayor of Jellystone. Huck is laidback and simplistic - and simple-minded - in his approach to running Jellystone. The town's weekly chaos typically gets a calm reaction from Huckleberry. Originally from The Huckleberry Hound Show.
 * Mr. Jinks (voiced by Jeff Bergman ) - A cat who is Mayor Huckleberry Hound's personal assistant. Originally from the "Pixie and Dixie and Mr. Jinks" segment of The Huckleberry Hound Show.
 * Snagglepuss (voiced by Dana Snyder ) - An anthropomorphic pink cougar. He is Mayor Huckleberry Hound's go-to for public relations. He is confirmed to be LGBT (Gay). He also hosts different talk shows in Jellystone and also works as the local newsman at the Jellystone News Studio. Originally from The Quick Draw McGraw Show and The Yogi Bear Show.

Jellystone Elementary School

 * Quick Draw McGraw/El Kabong (voiced by Bernardo de Paula ) - A horse and teacher at the school who doubles as the town's own guitar-wielding superhero. Originally from The Quick Draw McGraw Show. Unlike his original counterpart, he is Hispanic and remains in his superhero persona with no hint of an alter ego ever being revealed.
 * Augie Doggie (voiced by Georgie Kidder ) - An eager young pup who has a close relationship with her father, Doggie Daddy. Unlike her original counterpart, Augie is depicted as a girl in this show. Canonically 11 years old, or 132 months old, in the episode "My Doggie Dave". One of Augie's favorite father-daughter activities is exchanging fifty kisses. Her two best friends are Shag Rugg and Yakky Doodle. Augie's origins were revealed in the episode “The Big Stink” when her father explained why he was not effected by the Stink. Originally from the Augie Doggie and Doggie Daddy segment on The Quick Draw McGraw Show.
 * Yakky Doodle (voiced by Katie Grober ) - Originally from The Yogi Bear Show segment with the same name. Yakky is depicted as a little girl duck and no longer speaks in buccal speech. She is an overly cautious worrywart and is best friends with Augie Doggie and Shag Rugg.
 * Shag Rugg (voiced by Ron Funches ) - One of The Hillbilly Bears, Shag is a cool brown bear cub with a penchant for hip lingo and fun, stylish life. Originally from The Hillbilly Bears segment on The Atom Ant Show.
 * Ruff and Reddy (voiced by Oscar Reyez & Jakari Fraser ) Originally from The Ruff and Reddy Show. Ruff and Reddy are depicted as a pair of robot kids as a reference to their first adventure in the show, who are a cat and a dog with a bit of a friendly rivalry.
 * Lambsy Divey (voiced by Dana Snyder ) - A young skateboarder lamb. Originally from the "It's the Wolf!" segment of Cattanooga Cats.
 * Ding-a-Ling Wolf - A small wolf. Originally from the "Hokey Wolf" segment of The Huckleberry Hound Show.
 * Caveman "Cavey" Jr. (voiced by Dana Snyder ) - A young caveboy with long body hair and Captain Caveman's equally rambunctious son whom he discovers frozen in one of Jellystone's icecaps. Originally from the "Captain Caveman and Son" segment of The Flintstone Kids.

The Alley

 * Top Cat (voiced by Thomas Lennon ) - A cat who is the slick and conniving leader of the alley cats. He is often seen cooking up schemes to sucker the residents of Jellystone and pocket some quick cash with some of them going awry. Originally from Top Cat.
 * Benny the Ball (voiced by C.H. Greenblatt ) - A member of Top Cat's gang. He is also Top Cat's #1 gang member. The only cat members to not have sclera.
 * Choo-Choo (voiced by Jenny Lorenzo ) - A member of Top Cat's gang who is depicted as a girl in this show. She is the smartest and tends to land perfectly.
 * Brain (voiced by Georgie Kidder ) - A member of Top Cat's gang who retains more of a sarcastic tone and habit of using the word “like” in the middle of sentences (a trait previously attributed to Spook). Like Choo-Choo, she is also depicted as a girl in this show. Brain is also smarter than her original counterpart similar to Brain's portrayal in the Silver Age/Bronze Age comics.
 * Fancy Fancy (voiced by Andrew Frankel ) - A member of Top Cat's gang. He is less worried about getting into a relationship unlike his original counterpart.
 * Spooky (voiced by Jenny Lorenzo ) - A genderbent version of Spook who is now depicted as the gang's brainless and silent cook. Like Choo-Choo and Brain, she is also depicted as a girl in this show.Spooky is usually seen as a innocent person but judging by most scenes in the show she has a violent nature.
 * The King (voiced by Bernardo de Paula ) - A cool, Fonzie-like lion who rivals Top Cat in the episode "Cats Do Dance". He and his friends are talented dancers. The King has also been shown to indulge in some petty criminal activities. In "Jailcation", he was seen as an inmate of Santo Relaxo. Originally from the "Heyyy, It's the King!" segment of CB Bears.
 * Big H - A hippopotamus and member of King's group who is depicted as a girl in this show.
 * Clyde - A light-brown gorilla and member of King's group.
 * Skids - A bucket-wearing alligator and member of King's group who is depicted as a girl in this show.
 * Yuka Yuka - A hyena and member of King's group. In "Santo Relaxo", he was seen as an inmate at Santo Relaxo.

Jellystone Police Department

 * Touché Turtle (voiced by Dana Snyder ) - Jellystone's chief of police and a less intelligent Musketeer-like swords-turtle. Originally from the "Touche Turtle and Dum Dum" segment of The Hanna-Barbera New Cartoon Series.
 * Yippee, Yappee and Yahooey (voiced by Jim Conroy, Grace Helbig, and C.H. Greenblatt ) - Three silly dog police officers who, like Touche, dress in Musketeer-style clothing and carry around swords. The episode "Lotions 11" reveals that Yahooey has two mothers. Originally from The Peter Potamus Show segment with the same name.

Jellystone Detective Agency
The Jellystone Detective Agency operates in Jellystone's Detective District which is Jellystone's most black and white part of town.


 * Snooper and Blabber (voiced by Georgie Kidder and Bernardo de Paula) - A cat and mouse detective duo. Originally from the "Snooper and Blabber" segment of The Quick Draw McGraw Show, Snooper here is depicted as female while Blabber retains being male with facial hair who speaks without lisp.
 * Undercover Elephant (voiced by Dana Snyder) - An elephant detective. Originally from the CB Bears segment with the same name. Like the show he came from, Undercover Elephant makes use of the disguises that don't work well.
 * Inch High (voiced by Fajer Al-Kaisi) - A miniature private investigator was not pleased with Lippy and Hardy's debut comedy album and called it bad enough for them to lock him in a chest with it that they misplaced in "It's a Mad Mad Mad Rat Race". In "The Box Thief", Inch High was in Jabberjaw and Huckleberry's unboxing video where the latter put him back in the box. The episode "Jellystone Noir" reveals that he is Jellystone's number 2 inch high private detective. Originally from Inch High, Private Eye.

Town proprietors

 * Magilla Gorilla (voiced by Paul F. Tompkins ) - A gorilla who is the owner of a haberdashery called "Magilla's", which specializes in bow ties and hats. Originally from The Magilla Gorilla Show. Unlike his earlier counterpart, he is a fashion freak, seeing his clothing style as art, has a slighter lighter and wears a pair of glasses.
 * Jabberjaw (voiced by Niccole Thurman ) - A cheerful shark who is Magilla's star employee. Unlike previous incarnations of the character, Jabberjaw is depicted as a girl. She is mostly boy-crazy, with a readiness to please the male residents of Jellystone. She seems to be particularly fond of El Kabong. The reason Jabberjaw pronounces her boss Magilla Gorilla's name as "Ma-JILL-a" is because Jabberjaw's voice actress, Niccole Thurman, initially didn't know how to pronounce Magilla's name. The crew decided this fit Jabberjaw's personality and kept the pronunciation. Originally from Jabberjaw.
 * Loopy De Loop (voiced by Ulka Simone Mohanty ) - A French-Canadian wolf who is Jabberjaw's coworker and friend. Like Jabberjaw, she is depicted as a girl. While her original counterpart displayed friendliness and do-good spirit, Jellystone's Loopy is often deadpan and sarcastic, often making such suggestions as burning down the clothing store. Originally from the Loopy De Loop theatrical short series.
 * Doggie Daddy (voiced by C.H. Greenblatt ) - Augie Doggie's father and an excitable helicopter canine parent who is the lighthouse keeper. Nothing makes Doggie Daddy happier than spending time with his daughter, whom he has a hard time leaving alone. Originally from the "Augie Doggie and Doggie Daddy" segment of The Quick Draw McGraw Show.
 * Peter Potamus (voiced by C.H. Greenblatt ) - A hippopotamus who is a lonely Otaku and martial arts enthusiast that spends time with his action figures (in lieu of actual friends). Other times, he tries to hang out with the other citizens. In the second season, his occupation was revealed to be a mail carrier for Jellystone's postal service with his balloon as his mode of transportation. Originally from The Peter Potamus Show.
 * So-So (voiced by George Takei) - A monkey who originated in The Peter Potamus Show. So-So is rarely seen in Jellystone, but does appear as Peter's fight trainer in the episode "Jelly Wrestle Rumble". In the second season, he continues to work with Peter Potamus through the town's postal service.
 * Squiddly Diddly (voiced by Niccole Thurman ) - An octopus who is the proprietor of the music store. Squiddly has been gender-switched and speaks with a valley girl accent. Originally from The Secret Squirrel Show segment with the same name.
 * Shazzan (voiced by Fajer Al-Kaisi ) - A jovial genie who is seen working a variety of vending jobs in Jellystone and also works a ticket seller at the Jellystone Theatre. In the third season, it is revealed that the reason that he works multiple jobs is to pay off his student debt. Originally from Shazzan. Unlike the show that he comes from, Shazzan is not depicted as being giant-sized.
 * Jonny Quest and Hadji (voiced by Andrew Frankel and Fajer Al-Kaisi ) - The operators of Quest Bowl, the town's bowling alley. Originally from the Jonny Quest franchise, the two are depicted as adults and a married couple in this show.
 * Rugg Family - Shag Rugg's hillbilly family who run the Mud Bug Café. Originally from "The Hillbilly Bears" segment of The Atom Ant Show.
 * Paw Rugg (voiced by Jim Conroy ) - A brown bear and Shag Rugg's father whose mumbling is understood by his family. His name is misspelled "Pa Rugg" in the credits.
 * Maw Rugg (voiced by Angelique Perrin) - A brown bear and Shag Rugg's mother.
 * Floral Rugg (voiced by Georgie Kidder ) - A yellow bear and Shag Rugg's older sister who works as a waitress at the Mud Bug Café.
 * Chopper (voiced by Angelique Perrin) - A bulldog. Originally from the "Yakky Doodle" segment of The Yogi Bear Show. Chopper is depicted as a female and is Yakky Doodle's adoptive canine mother. She's tougher than her daughter and not afraid to be lovingly rough. Chopper is revealed to run the Cattanooga Cheese Explosion pizzeria.
 * Morocco Mole (voiced by Dana Snyder) - A fez-wearing, bespectacled mole who runs "Saunas, Sweats & Sandwiches" in response to the fact that people can't eat sandwiches in a sauna. Originally from Secret Squirrel.

Other Jellystone townsfolk

 * Captain Caveman (voiced by Jim Conroy ) - A fun-loving caveman with long body hair who often hangs out with the likes of Yogi Bear and Jabberjaw. Captain Caveman lives in a van whose interior resembles a cave. Originally from Captain Caveman and the Teen Angels.
 * Wally Gator (voiced by Jeff Bergman ) - A cheerful dimwitted alligator who is a recurring patient at Jellystone Hospital. In "DNA, A-OK!", it is implied that Wally lives in the sewers of Jellystone. However, this may not be true according to "The Box Thief" where he was living in a house, though he was seen in the sewers in the latter episode. Originally from The Hanna-Barbera New Cartoon Series segment with the same name.
 * Bobbie Looey (voiced by Jenny Lorenzo ) - Based on Baba Looey from The Quick Draw McGraw Show. Unlike Baba, Bobbie is a well-spoken business burro and is a lady. She is Cuban rather than Mexican, and now works for the government.
 * The Banana Splits - Originating from The Banana Splits Adventure Hour, the Banana Splits are depicted as hardened yet cartoonish criminals that clash with El Kabong and make their hideout at the abandoned Oversized Cartoon Prop Warehouse. At one point, they recalled that they used to be cool.
 * Fleegle (voiced by Paul F. Tompkins) - A dog who is the Banana Splits' leader. Unlike his live-action counterpart and his animated counterpart in The Banana Splits in Hocus Pocus Park, his tongue doesn't hang out of his mouth while he speaks nor does he speak in a lisp.
 * Bingo (voiced by Jim Conroy) - An orange ape and member of the Banana Splits. In this show, he is shown to be the largest of the group.
 * Drooper (voiced by C.H. Greenblatt) - A lion and member of the Banana Splits.
 * Snorky - An elephant and member of the Banana Splits that mostly makes honking sounds.
 * Grape Ape (voiced by C.H. Greenblatt) - A purple 40 ft. gorilla.
 * Granny Sweet (voiced by Grace Helbig ) - A kindly elderly woman who is the town's judge. Originally from the "Precious Pupp" segment of The Atom Ant Show.
 * Bristle Hound - A sheep dog from the "It's the Wolf" segment of Cattanooga Cats who is the court bailiff.
 * Lippy the Lion and Hardy Har Har (voiced by Jeff Bergman and Jenny Lorenzo ) - A lion and a hyena duo. Unlike their original counterparts, Lippy and Hardy are depicted as an elderly Jewish couple with Hardy's gender-switched. Originally from The Hanna-Barbera New Cartoon Series segment with the same name.
 * Mildew Wolf (voiced by Bernardo de Paula ) - A flamboyant wolf. In the episode "Grocery Store", Mildew attempts to flirt with Shazzan, indicating that the character is portrayed as a gay person (possibly as a nod to Mildew's original voice actor Paul Lynde who often poked fun at his barely closeted homosexuality). Originally from the "It's the Wolf!" segment of Cattanooga Cats.
 * Brenda Chance, Dee Dee Sykes, and Taffy Dare (voiced by Georgie Kidder, Niccole Thurman, and Grace Helbig ) - Formerly Captain Caveman's teammates in Captain Caveman and the Teen Angels, these three are seen working various jobs at Jellystone including receptionists at the Jellystone Hospital and newscasters. Dee Dee is also seen working at the Cattanooga Cheese Explosion. Taffy Dare becomes a mother in season 3.
 * Pixie (voiced by Jenny Lorenzo) and Dixie - A pair of mice who are always seen together. Though they are rarely seen in Jellystone as they are very small, Hardy Har Har confirms in "Baby Shenanigans" that they work at a candy store. Dixie is also gender-switched in this show. Originally from the "Pixie and Dixie and Mr. Jinks" segment of The Huckleberry Hound Show.
 * Kwicky Koala (voiced by Paul F. Tompkins) - A koala. Some of his appearances have Kwicky wearing a flower near his ear. Originally from The Kwicky Koala Show.
 * Speed Buggy (voiced by Jim Conroy) - A dune buggy with working facial features.
 * Tinker (voiced by Dana Snyder ) - Speed Buggy's driver.
 *  J. Whimple Dimple - An elderly resident of Jellystone whom Top Cat was scamming. In "Jailcation", J. Whimple Dimple was seen on the tracks juggling a bunch of babies. Originally from The Magilla Gorilla Show episode "Big Game" where he was a hunter.
 * Atom Ant - A tiny ant with incredible physical strength. Though he is rarely seen in the series, he was briefly seen helping out with the wrestling match in "Jelly Wrestle Rumble!" Originally from The Atom Ant Show.
 * Dirty Dawg (voiced by Jeff Bergman) - A vagrant Labrador Retriever who is a caricature artist and an old friend of Lippy and Hardy. Originally from The Kwicky Koala Show segment with the same name.
 * Tubb (voiced by Dana Snyder) - A scuba diver. Originally from the "Moby Dick" segment of Moby Dick and Mighty Mightor. He is depicted as an adult and has a German accent in this version.
 * Kaboobie - A flying dromedary and friend of Shazzan who transports him to Biskitt Farms theme park in "Sha-Zogi". Originally from Shazzan.

Background Jellystone townsfolk
These characters appear in town sporadically, but don't seem to have much of a function so far:


 * Hokey Wolf - A wolf originally from The Huckleberry Hound Show segment with the same name. Currently only involved whenever there's a big crowd, particularly in the second season. His relationship with Ding-a-Ling is also unclear at present.
 * The Hair Bear Bunch - Originally the stars of Help!... It's the Hair Bear Bunch!
 * Hair Bear - Leader of the Hair Bear Bunch.
 * Square Bear - The largest member of the Hair Bear Bunch.
 * Bubi Bear - The smallest member of the Hair Bear Bunch.
 * The CB Bears - Originally the stars of CB Bears
 * Hustle - A brown bear who is the leader of the C.B. Bears.
 * Bump - A small blue bear who is a member of the C.B. Bears.
 * Boogie - A tall brown bear with a trash can lid on his head and yellow hair who is a member of the C.B. Bears.

New Bedrock
New Bedrock is Jellystone's rival town. The word Bedrock makes a reference to The Flintstones.


 * Dick Dastardly (voiced by Dwight Schultz) - The Mayor of New Bedrock. Originally from Wacky Races. He appears in his Dastardly and Muttley in Their Flying Machines outfit.
 * Muttley (voiced by Dana Snyder) - Dick Dastardly's dog sidekick. Originally from Wacky Races.
 * The Really Rottens - A team of villains residing in New Bedrock that work for Mayor Dick Dastardly.
 * Daisy Mayhem (voiced by Georgie Kidder) - A hillbilly woman and member of the Really Rottens who is the "maiden of destruction". Originally from the Laff-A-Lympics segment of Scooby's All Star Laff-A-Lympics. She is buffer and has tanned skin in this version.
 * Sooey - The pet pig of Daisy Mayhem. Originally from the Laff-A-Lympics segment of Scooby's All Stars.
 * Dinky Dalton (voiced by Dwight Schultz) - A towering outlaw cowboy and member of the Really Rottens. Originally from The Quick Draw McGraw Show.
 * Dirty Dalton - An outlaw cowboy who is the brother of Dinky Dalton. Originally from The Quick Draw McGraw Show.
 * Dastardly Dalton - An outlaw cowboy who is the brother of Dinky Dalton and Dastardly Dalton. Originally from The Quick Draw McGraw Show.
 * Mrs. Creepley - A creepy macabre woman. Originally from the Laff-A-Lympics segment of Scooby's All Stars.
 * Orful Octopus (voiced by Bernardo de Paula) - An octopus owned by Mrs. Creepley who is described to have "the stickiest tentacles in the west". Originally from the Laff-A-Lympics segment of Scooby's All Stars.
 * The Great Fondoo - An evil magician. Originally from the Laff-A-Lympics segment of Scooby's All Stars.
 * Magic Rabbit (voiced by Niccole Thurman) - The pet rabbit of The Great Fondoo. Originally from the Laff-A-Lympics segment of Scooby's All Stars. Unlike the previous version of the character, Magic Rabbit can actually say more words.

Guest characters

 * Axel - A skeleton who is attached to Winsome Witch's race car in the episode "Face of the Town". Originally from the "Fender Bender 500" segment of Wake, Rattle and Roll.
 * Baby Puss - A saber-toothed tiger who battles Captain Caveman and Cavey, Jr. in the episode "Ice Ice Daddy". Originally from The Flintstones. Here, Baby Puss is depicted as more sinister.
 * The Biskitts - The mascots for various food and drink products sold in Jellystone as well as a Biskitt Farms theme park.
 * Fred Flintstone (voiced by Jeff Bergman) - He was seen on the cover of a book that the book club read about in "Must Be Jelly" and can be heard during the film Revenge of the Gruesomes in "Uh Oh! It's a Burglar!" Originally from The Flintstones.
 * Wilma Flintstone - She was also seen on the cover of a book that the book club read about in "Must Be Jelly". Originally from The Flintstones.
 * The Clue Club - Featured in a cutaway in the episode "A Coconut to Remember" and appeared in "Frankenhooky" where they were impersonated by a bunch of Frankenstein monsters. Unlike their original counterparts, Larry, D.D., and Sheriff Bagley are depicted as dark-skinned people in this show.
 * Larry (voiced by C.H. Greenblatt)
 * Pepper (voiced by Grace Helbig)
 * D.D.
 * Dottie
 * Sheriff Bagley - A sheriff who is the law enforcement contact of the Clue Club.
 * Woofer (voiced by C.H. Greenblatt) and Wimper - The dog mascots of Clue Club.
 * Mr. Peebles - From The Magilla Gorilla Show where he ran a pet shop that acted as Magilla's home. Mr. Peebles is referenced in Jellystone through a few photographs from Magilla's past, but their relationship is not made clear. Mr. Peebles was seen in person in "The Brave Little Daddy" playing in the orchestra at the time when Doggie Daddy was attempting to discipline Grape Ape.
 * Quack-Up (voiced by Fajer Al-Kaisi) - A goofy duck who tries to sell Augie Doggie insurance in the episode "Grocery Store". Originally from Yogi's Space Race and Galaxy Goof-Ups.
 * The Neptunes - Consisting of Biff, Bubbles, Clamhead, and Shelly, they are Jabberjaw's former bandmates. Shelly is the most recurring one as she is often seen working as a cashier at Barbera's.
 * Bleep (voiced by Jim Conroy) - An alien who pays visits in the episodes "Mr. Flabby Dabby Wabby Jabby" and "Bleep". In this show, Bleep can be vicious if given something with hot sauce. Originally from Josie and the Pussycats in Outer Space.
 * Glump (voiced by Fajer Al-Kaisi) - A Stegosaurus who specifically refers to himself as "Glump, from the Valley of the Dinosaurs". He is seen as Top Cat's therapy patient in the episode "Ice Ice Daddy" where he talks about getting over his fear of meteors before a fragment of rock strikes their session. Unlike his original self who was merely a pet animal, Glump is anthropomorphic and capable of speech in this show. Glump made a cameo in "Epic Rager" when Captain Caveman mentioned that he and Glump barely escaped with their lives when his cousins' epic rager led to their big ice cream sundae causing the Ice Age.
 * The Cattanooga Cats - Consisting of Country (voiced by Scott Whyte ), Kitty Jo (voiced by Georgie Kidder ), Scoots, and Groove, the rock band is depicted as singing animatronics at the Cattanooga Cheese Explosion that are similar to The Rock-afire Explosion band and Munch's Make-Believe Band at Chuck E. Cheese. Their dog Teeny Tim is depicted as a robot waiter in the show. The horror theme is similar to Five Nights at Freddy's.
 * The Funky Phantom (voiced by Paul F. Tompkins) - A ghost who was formerly a famous wrestler and Mayor Huckleberry Hound's childhood hero. The Funky Phantom now works as an avocado salesman. In "Jailcation", the Funky Phantom appears as an inmate at Santo Relaxo.
 * Mightor (voiced by Jim Conroy) - The Funky Phantom's caveman wrestling opponent in the Phantom's infamous final match. Originally from the "Mighty Mightor" segment of Moby Dick and Mighty Mightor.
 * Gravity Girl - A character from "The Galaxy Trio" segment of Birdman and the Galaxy Trio who is a wrestling referee.
 * The Great Gazoo (voiced by Flula Borg) - A sociopathic green alien who hosts the virtual reality game "BuddyBlasters" in the episode "Gotta Kiss Them All". Originally from The Flintstones. He becomes a background character in season 2 as seen in "The Sea Monster of Jellystone Cove".
 * Yankee Doodle Pigeon - A carrier pigeon who appears in Yogi Bear's movie in the episode "A Town Video: Welcome to Jellystone". Originally from Dastardly and Muttley in their Flying Machines.
 * Klunk (voiced by Fajer Al-Kaisi) - A criminal that steals Jabberjaw's ice cream and is defeated by El Kabong. Originally from Dastardly and Muttley in their Flying Machines.
 * Scrappy-Doo - He appears on a milk carton Cindy drinks. His cameo is a reference to his lack of appearances due to his reception.
 * Zandor - He appears on a TV show that Cindy and Bleep watch. Originally from The Herculoids.
 * Gloop - Gloop appears on a TV show that Cindy and Bleep watch getting hugged by Zandor. Gloop is depicted as a girl in this show. Originally from The Herculoids.
 * Ghost Team - A group of superheroes who wear inviso-belts.
 * Space Ghost (voiced by Paul F. Tompkins in season 2, George Lowe in season 3 ) - A ghost-themed galactic superhero whose Phantom Cruiser ends up in a collision with Bleep's ship, and host of Space Ghost Coast to Coast. He later appeared in "Space Con" with his team. Originally from Space Ghost.
 * Jan and Jace (voiced by Georgie Kidder and Andy Merrill) - Space Ghost's sidekicks. Originally from Space Ghost
 * Blip (vocal effects provided by Jeff Bergman) - Jan and Jace's pet monkey. Originally from Space Ghost
 * Moby Dick (voiced by Paul F. Tompkins) - A white sperm whale that lives in the waters of Jellystone Cove. Originally from the "Moby Dick" segment of Moby Dick and Mighty Mightor.
 * Barney Rubble (voiced by Paul F. Tompkins) - His voice can be heard during the movie Revenge of the Gruesomes in "Uh Oh! It's a Burglar!" Originally from The Flintstones.
 * Weirdly Gruesome - He appeared in the movie Revenge of the Gruesomes in "Uh Oh! It's a Burglar!" Originally from The Flintstones.
 * Dino - He appeared as a playground toy. Originally from The Flintstones.
 * Orbity (vocal effects provided by Ulka Simone Mohanty) - He appeared as a playground toy in season two and his design is later used to portray the Inner Cupids. Originally from The Jetsons.
 * Zorak (voiced by Jim Conroy) - A Dokarian mantis who is a villain of Space Ghost, but later the sidekick and musician of Space Ghost sequel Space Ghost Coast to Coast, and host of Cartoon Planet. who was seen on the movie poster for "Brakbud Peak" (a Brokeback Mountain parody and a reference to the Zorak/Brak slash pairing) in "It's a Mad Mad Mad Rat Race", making a reference to both The Brak Show due to him being friendly to Brak. He later appears as an inmate at Santo Relaxo in "Jailcation". Brak appears in season 3, disguised as Gravity Girl as part of a plot to attack Space Ghost at a convention. Originally from Space Ghost.
 * Brak (voiced by Andy Merrill ) - A cat-like alien who is a villain of Space Ghost, but later the sidekick and a supported character from Space Ghost Coast to Coast and the host of Cartoon Planet. was seen on the movie poster for "Brakbud Peak" in "It's a Mad Mad Mad Rat Race", making a reference to The Brak Show due to him being friendly to Zorak. He later appears as an inmate at Santo Relaxo in "Jailcation". Brak also appears in season 3 disguised as Vapor Man as part of a plot to attack Space Ghost at a convention. Originally from Space Ghost.
 * Mrs. Guerta/Mom - A cat-like alien who has white hair, wears blue clothing and some pink kitchen clothing, who is the mother of Brak. She gets mentioned by Brak in the season three episode "Space Con". Originally from Space Ghost sequel The Brak Show.
 * Secret Squirrel - He was seen on a movie poster for "The Blow-ening!" in "It's a Mad Mad Mad Rat Race".
 * Dread Baron - An inmate at Santo Relaxo. Originally from the Laff-A-Lympics segment of Scooby's All Star Laff-A-Lympics.
 * Hilarious P. Prankster - A jester-themed criminal who is an inmate at Santo Relaxo. In "Heroes and Capes", Hilarious P. Prankster was shown to have been defeated by Yogi Bear in his Super Yogi alias only to slip away while Super Yogi was distracted. Originally from Yogi's Gang.
 * Creeper - Top Cat posed as the prison guard Creeper when his gang were sent to Santo Paino until Top Cat secretly rerouted them to Santo Relaxo. Originally from Scooby-Doo, Where Are You!
 * Scare Bear - He appears on the Lil' Professional badge. Originally from Yogi's Space Race and Galaxy Goof-Ups.
 * Sky Pirates - A group of sky pirates that operate over the skies of Jellystone.
 * Captain Swashbuckle Swipe (voiced by Bernardo de Paula) - The captain of the sky pirates. In "Heroes and Capes", Captain Swipe was confronted by Boo Boo in his Simple Sailor alias at the jewelry store. Originally from Yogi's Gang.
 * Lotta Litter (voiced by Georgie Kidder) - Member of the sky pirates who is the first lady of filth. She specializes in throwing garbage at anyone. Originally from Yogi's Gang.
 * Mr. Smog (voiced by C.H. Greenblatt) - Member of the sky pirates. He specializes in smog attacks. In "Heroes and Capes", Mr. Smog was shown being chased by Wally Gator in his Pogo Prince alias. Originally from Yogi's Gang.
 * Gossipy Witch of the West (voiced by Dana Snyder) - A witch and member of the sky pirates who tells gossip. Originally from Yogi's Gang.
 * Blue Falcon (voiced by Rob Riggle) - A falcon-themed superhero who pretends to be buff due to the inflations in his superhero outfit. Originally from The Scooby-Doo/Dynomutt Hour segment: Dynomutt, Dog Wonder.
 * Dynomutt - Blue Falcon's robotic canine sidekick. Originally from The Scooby-Doo/Dynomutt Hour segment Dynomutt, Dog Wonder.
 * Mr. Hothead - He was seen running from Mayor Huckleberry Hound in his Armored Mayor alias. Originally from Yogi's Gang.
 * Moltar (voiced by Bernardo de Paula) - A villain who created Magma Men, which he is later a sidekick and the director in Space Ghost sequel Space Ghost Coast to Coast and also the host of Toonami. His body is made entirely of lava, and he normally wears an orange and gray full-body containment suit which has a breathing receptacle. He was seen on the cover of the book "Moltar's Big Book of Fables and Slow Cooker Recipes" that Wally Gator wanted to take out of the library. Moltar appears in season three where he disguises himself as Meteor Man as part of a plot to attack Space Ghost at a convention. Originally from Space Ghost.
 * The Jetsons - A futuristic family. Originally from the series of the same name.
 * George Jetson (voiced by Jeff Bergman) - The patriarch of the Jetson family.
 * Jane Jetson (voiced by Annie Mumolo) - George's wife.
 * Judy Jetson (voiced by Georgie Kidder) - George's daughter.
 * Elroy Jetson - George's son. Elroy is mute in this version.
 * Astro (vocal effects provided by Ron Funches) - The Jetsons' pet dog.
 * Rosie (voiced by Annie Mumolo) - The robot maid. A bunch of her were made by Spacely Space Sprockets run by that time period's Bobbie Louie and nearly caused a robot apocalypse before Bobbie talked everyone into wearing down their batteries by taking advantage of their service programming.
 * Cool Cat (voiced by Dana Snyder) - A cat and Huckleberry Hound's old friend who was into disco where the booty bumps he caused spreads disco fever to anyone. Originally from the Heyyy, It's the King! episode "The King and His Jokers" where he was depicted as a rival of King. He has an American accent rather than an Australian accent in this series.
 * Ghost Clown - He appears on a photo in "Disco Fever". Originally from Scooby-Doo, Where Are You!.
 * The Ghost Chasers - A mystery solving team where three of its members were impersonated by some of the Really Rottens in "Frankenhooky". Originally from Goober and the Ghost Chasers.
 * Goober - The animal mascot of the Ghost Chasers.
 * Ted (voiced by Dana Snyder) - The leader of the Ghost Chasers who was impersonated by Orful Octopus.
 * Tina (voiced by Jenny Lorenzo) - The female member of the Ghost Chasers who was impersonated by Magic Rabbit.
 * Gilly (voiced by C.H. Greenblatt) - A bespectacled member of the Ghost Chasers who was impersonated by Sooey.
 * Mystery Inc. - The famous mystery-solving team who was impersonated by some characters in "Frankenhooky". Initially, they were depicted as characters starring in the show-within-a-show titled Scooby-Doo. Originally from Scooby-Doo, Where Are You!
 * Scooby-Doo - The animal mascot of Mystery Inc. He was revealed to have been impersonated by the cotton ball jar.
 * Shaggy Rogers (voiced by Matthew Lillard) - A member of Mystery Inc. He was impersonated by Tubb and a Tiny Yogi in "Frankenhooky".
 * Fred Jones (voiced by Frank Welker) - A member of Mystery Inc. He was impersonated by Ranger Smith and the character from Yogi's video game in "Frankenhooky".
 * Daphne Blake - A member of Mystery Inc. She was impersonated by Hardy Har Har and Tubb's arm in "Frankenhooky".
 * Velma Dinkley (voiced by Kate Micucci) - A bespectacled member of Mystery Inc. She was impersonated by Cindy Bear in "Frankenhooky".
 * Elektra (voiced by Ulka Simone Mohanty) - An actress who stars in the titular Jellystone Television show in "Girl, You My Friend!" She has electric powers rather than psychic powers in this series. Originally from the "Teen Force" segment of Space Stars.
 * Flirtacia (voiced by Georgie Kidder) - A Lilliputian actress who stars in the titular Jellystone Television show in "Girl, You My Friend"! Flirtacia also appears to drop the flag to start the featured race in "Lil' Honk Honks" until the ants took her away. Originally from The Adventures of Gulliver.
 * Zelda the Ostrich (voiced by Niccole Thurman) - An ostrich actress who stars the titular Jellystone Television show in "Girl, You My Friend"! Originally from the "Heyyy, It's the King!" segment of CB Bears.
 * Charlie the Robot (voiced by Dana Snyder) - A robot actor who stars in the titular Jellystone Television show in "Girl, You My Friend"! Originally from Scooby-Doo, Where Are You!.
 * The Red Guy (voiced by Dana Snyder) - A devil residing in the bad place. He was seen in "Vote Raspberry" where he was hit in the eye by Mr. Jinks' graph that told how low Mayor Huckleberry's approval ratings are. Originally from Cow and Chicken and its spin-off/former segment I Am Weasel.
 * Hong Kong Phooey (voiced by Ron Funches) - The star of a martial arts film franchise as seen in "Collection Protection". Originally from Hong Kong Phooey.
 * Spot (voiced by Bernardo de Paula) - He's portrayed as a buff talking cat and Hong Kong Phooey's brother. Originally from Hong Kong Phooey.
 * Sergeant Flint - A supporting character in Hong Kong Phooey's films. Originally from Hong Kong Phooey where he was the police sergeant.
 * Rosemary (voiced by Georgie Kidder) - A supporting character in Hong Kong Phooey's films. Originally from Hong Kong Phooey where she worked as the police department's telephone operator.
 * Little Rok (voiced by SungWon Cho) - An anime fan and proprietor of Little Rok's Big Museum of Anime and Manga Memorabilia who is Peter Potamus' anime collection rival as seen in "Collection Protection". Originally from the "Mightor" segment of Moby Dick and Mighty Mightor.
 * Ork - Little Rok's pet bird. Originally from the "Mightor" segment of Moby Dick and Mighty Mightor.
 * Dr. Benton Quest - Shown in a picture in "Mummy Knows Best". Originally from Jonny Quest.
 * Race Bannon - Shown in a picture in "Mummy Knows Best". Originally from Jonny Quest.
 * Bandit - Shown in a picture in "Mummy Knows Best". Originally from Jonny Quest.
 * Lokar - An insectoid who made a brief cameo at the sci-fi convention in "Space Con". Originally from Space Ghost.
 * Sneezly Seal - A seal. He appears in a commercial for the titular car-building set in "Lil' Honk Honks". Originally from the "Breezly and Sneezly" segment of The Peter Potamus Show.
 * Buzz Conroy - He appears in a commercial for the titular car-building set in "Lil' Honk Honks". Originally from the "Frankenstein Jr." segment of Frankenstein Jr. and The Impossibles.
 * Dino Boy (voiced by C.H. Greenblatt) - He appears in a commercial for the titular car-building set in "Lil' Honk Honks" and later appears in "Epic Rager" showing up late to the epic rager as he tells Ugh that they shouldn't have stopped for falafel as Ugh mentions about his blood sugar. Then they start arguing as Boo Boo mentions that the sewer people are back. Originally from the "Dino Boy in the Lost Valley" segment of Space Ghost.
 * Ugh (voiced by Jim Conroy) - A caveman who appears in "Epic Rager". When Ugh arrives with Dino Boy and Bronty and asks if they are late for the epic rager, Dino Boy states to Ugh that they shouldn't have stopped for falafels. Ugh quotes "You know how me blood sugar gets". Then they start arguing. Originally from the "Dino Boy in the Lost Valley" segment of Space Ghost.
 * Bronty (vocal effects provided by Ulka Simone Mohanty) - A young Brontosaurus who serves as Dino Boy and Ugh's mode of transportation. He appears in "Epic Rager" when he, Dino Boy, and Ugh show up late for the epic rager. Originally from the "Dino Boy in the Lost Valley" segment of Space Ghost.
 * Birdman - Shown in a picture in "Epic Rager" where a memorial is set up for Birdman who died in Jellystone's fight against the sewer people as Boo Boo states that his sacrifice will not be in vain. Originally from the "Birdman" segment of Birdman and the Galaxy Trio.
 * Scooby-Dum - The former mayor of Jellystone who was mentioned by Mayor Huckleberry Hound to have been impeached in "Epic Rager". Originally from The Scooby-Doo/Dynomutt Hour segment The Scooby-Doo Show.
 * The Cave Family - A group of Neanderthal cavepeople who are Captain Caveman's cousins that appear in "Epic Rager" and are described by him to be the original party animals as they are unfrozen from their block of ice to help turn the Jellystone Plaza party into an epic rager which only ends when a big disaster strikes. Originally from Valley of the Dinosaurs which was also the name of the location where they are from.
 * Gorok (voiced by Paul F. Tompkins) - The patriarch of the Cave Family. His name was misspelled "Gork" in the credits.
 * Gara (voiced by Niccole Thurman) - Gorok's wife.
 * Lok (voiced by Paul F. Tompkins) - Gorok's son.
 * Tana (voiced by Grace Helbig) - Gorok's daughter.
 * Thundarr the Barbarian - A barbarian. He and his group witness Captain Caveman's Neanderthal cousins building a party sub that goes into outer space enough to break the Moon. Originally from Thundarr the Barbarian.
 * Ookla the Mok (vocal effects provided by Jeff Bergman) - A Mok and companion of Thundarr the Barbarian. When Captain Caveman's Neanderthal cousins start making a large enough party sub that goes into outer space enough for the Moon to break, Thundarr's group witnesses this as Ookla comments in his own language with the translative subtitles "Oh c'mon! Not the Moon again!" Originally from Thundarr the Barbarian.
 * Princess Ariel - A magic-using companion of Thundarr the Barbarian. She witnesses Captain Caveman's Neanderthal cousins building a party sub that goes into outer space enough to break the Moon. Originally from Thundarr the Barbarian.