Big Mouth season 4

The fourth season of Big Mouth, an American adult animated coming-of-age sitcom created by Andrew Goldberg, Nick Kroll, Mark Levin, and Jennifer Flackett, was released on Netflix on December 4, 2020. The series centers on teens based on Kroll and Goldberg's upbringing in suburban New York, with Kroll voicing his fictional younger self. Big Mouth explores puberty while "embrac[ing] a frankness about the human body and sex."

Main

 * Nick Kroll as Nick Birch, Maurice the Hormone Monster, Coach Steve Steve, Lola Skumpy and Nick Starr
 * Kroll also voices Mila and Lotte Jensen, Rabbi Paulblart, Mark, and Bad Mitten
 * John Mulaney as Andrew Glouberman
 * Mulaney also voices Andrew 3000 and Detective Florez
 * Jessi Klein as Jessi Glaser
 * Jason Mantzoukas as Jay Bilzerian
 * Jenny Slate and Ayo Edebiri as Missy Foreman-Greenwald
 * Slate also voices Mirror Missy, Caitlyn, Vicky and others
 * Edebiri also voices Mosiac Missy
 * Fred Armisen as Elliot Birch
 * Maya Rudolph as Connie the Hormone Monstress and Diane Birch
 * Rudolph also voices Gayle King and Paula
 * Jordan Peele as Ghost of Duke Ellington, Featuring Ludacris, Cyrus Forman-Greenwald
 * Peele also voices Sinbad

Recurring
• Andrew Rannells as Matthew MacDell

• Paula Pell as Barbara Glouberman

• Richard Kind as Marty Glouberman

• Seth Morris as Greg Glaser

• Jessica Chaffin as Shannon Glaser

• Mark Duplass and Paul Scheer as Val and Kurt Bilzerian

• *Scheer also voices a Gap-Toothed Camper

• Jon Daly as Judd Birch

• *Daly also voices Jesus Christ

• Kat Dennings as Leah Birch

• June Diane Raphael as Devin

• Jak Knight as DeVon

• Joe Wengert as Caleb and Lump Humpman

• Fran Gillespie as Samira

• Thandiwe Newton as Mona

• Maria Bamford as Tito Taylor Thomas the Anxiety Mosquito

• * Bamford also voices Nancy, Jessi's therapist.

• Jean Smart as Kitty Bouchet the Depression Kitty

• Seth Rogen as Seth Goldberg

• Alia Shawkat as Roland

• Emily Altman as "Milk"

• Zachary Quinto as Aiden

• Josie Totah as Natalie el-Khoury

• Chelsea Peretti as Monica Foreman-Greenwald

• Gina Rodriguez as Gina Alvarez

• Ali Wong as Ali

• Gary Cole as Edward MacDell

• Julie White as Kimberly MacDell

• Gil Ozeri as Brad and Additional Voices

• Zach Galifianakis as the Gratitoad [4]

• Sterling K. Brown[4] as Michael Angelo

Guest
• Heather Lawless as Jenna "Jay's Mom" Bilzerian

• Natasha Lyonne as Suzette

• *Lyonne also voices Nadia Vulvokov

• John Oliver as Harry

• Somali Rose as Missy's overalls

• Lena Waithe as Lena[4]

• Quinta Brunson as Quinta

• Paul Giamatti[4] as Andrew's fece

• Kristen Wiig as Jessi's vulva

• Maya Erskine and Anna Konkle as Misha and Izzy

• David Thewlis as Lionel St. Swithens

• Julie Klausner as Cherry Marashina, formerly Cheryl Glouberman

• Judd Hirsch as Lewis Glouberman

• David Cross as Skip Glouberman

• Rosa Salazar as Miss Benitez

• Michaela Watkins as Cantor Dina Reznick

• Harvey Fierstein as Jerome

Critical response
On Rotten Tomatoes, the fourth season has an approval rating of 100% based on 22 reviews, with an average rating of 8.30 out of 10. The website's critics consensus reads, "Big Mouth fourth season is another tour de force of empathetic cringe comedy that manages to get even better by finally giving Missy the storyline she deserves." On Metacritic, it has a score of 84 out of 100 for the third season, based on five critics, indicating "universal acclaim".