Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (2023)

Big Mouth is back with its fourth season, and here are the actors and characters returning as well as those who will make their debut this season. Big Mouth is an adult animated sitcom created by Andrew Goldberg, Nick Kroll, Mark Levin, and Jennifer Flackett, which made its debut on Netflix in September 2017. The show was so well-received by critics that it continued with a second and third season along with a Valentine’s Day special episode before being renewed through to a sixth season.


Big Mouth follows a group of teens as they deal with puberty and more with the help of their Homone Monsters, although they mostly create more problems. Big Mouth has been a hit thanks to its humor, relatable characters and situations, and its approach to sexuality, puberty, mental health, social issues, and more. The series hasn’t been afraid to address controversial or “taboo” topics, name drop other companies, and even mock itself, as it’s highly self-aware. Now, a bit over a year since season 3 was released, Big Mouth is back with a fourth season, along with new struggles, topics to explore, and threats.

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Season 4 will see Jessi, Nick, and Andrew going to camp, where Nick and Andrew’s friendship will continue to crumble. In addition to that, Jessi will have to deal with adapting to a new city and with more changes in her body, while Missy goes through a makeover. The group will also come across Tito, the Anxiety Mosquito, who will put their worlds upside down. Big Mouth season 4 will see the return of the main cast and will welcome new voices, ready to join the crazy ride that is puberty. Here’s the cast and characters guide for Big Mouth season 4 and what the voice actors look like.

Nick Kroll as Nick Birch, Maurice, Coach Steve, Lola, & More

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (1)

Nick Kroll returns as the voice of Nick Birch, hormone monster Maurice, Coach Steve, and Lola Ugfuglio Skumpy. In past seasons, Kroll also lent his voice to a variety of guest characters, such as the Statue of Liberty, a ladybug, and Sylvester Stallone, to name just a few, so expect to hear his voice in new, minor characters through season 4. Kroll has appeared in a number of movies and TV shows, and has also voiced a variety of characters, though he’s best known for his work in Kroll Show and , where he played “The Douche”.

John Mulaney as Andrew Glouberman

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (2)

John Mulaney voices Nick’s best friend Andrew Glouberman, who is often accompanied by Maurice, his hormone monster. Mulaney is best known for his stand-up comedy and for his work as a writer on Saturday Night Live. Mulaney appeared in Kroll Show as George St. Geegland and has voiced various characters throughout his career, most notably Peter Porker/Spider-Ham in Spider-Man: Into the Spider-Verse.

Jessi Klein as Jessi Glaser

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (3)

Jessi Klein voices Jessi Glaser, a friend of Nick, Andrew, and Missy, and who has Connie as her hormone monstress. Klein is a writer, actress, and stand-up comedian, who worked as a director of development for Comedy Central, where she helped develop various TV shows, such as Chappelle’s Show and Stella, and was the head writer and executive producer of Inside Amy Schumer.

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Jason Mantzoukas as Jay Bilzerian

Jason Mantzoukas lends his voice to Jay Bilzerian, a friend of the above-mentioned characters and an amateur magician. In previous seasons, Mantzoukas also voiced Guy Bilzerian (Jay’s dad) as well as the ghost of Socrates. Mantzoukas played Tick Tock Man in John Wick: Chapter 3 – Parabellum, Dennis Feinstein in Parks & Recreation, Adrian Pimento in Brooklyn Nine-Nine, and Derek Hofstetler in The Good Place.

Jenny Slate and Ayo Edebiri as Missy Foreman-Greenwald

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (5)

Jenny Slate voices Missy Foreman-Greenwald through Big Mouth season 4 except for the last two episodes, where Ayo Edebiri took her place. Jenny Slate decided to no longer voice Missy in favor of casting an African-American actress, and so Ayo Edebiri took her place. Slate is known for her work on SNL, Parks & Recreation (where she played Mona-Lisa Saperstein), and starred in the movie Obvious Child. She has also voiced Tammy Larsen in Bob’s Burgers, Harley Quinn in The Lego Batman Movie, and Valerie Da Vinci in Despicable Me 3. Edebiri is a stand-up comedian, and her upcoming projects include Netflix’s Mulligan, We Lost Our Human, and Apple TV+’s Dickinson.

Maya Rudolph as Connie and Diane Birch

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (6)

Maya Rudolph voices hormone monstress Connie and Nick’s mother, Diane Birch. In previous seasons, she also voiced a bath mat, the ghosts of Elizabeth Taylor and Whitney Houston, Principal Barren, and Miss Clinkscales. Rudolph is known for her work in SNL, and since her departure, she has appeared in various movies, such as Bridesmaids, Sisters, Wine Country, and Hubie Halloween, as well as the TV show The Good Place.

Andrew Rannells as Matthew MacDell

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (7)

Andrew Rannells lends his voice to Matthew MacDell, a gay student who helped Jay when he was questioning his sexual orientation. Rannells is known for his work in musical theater and for his roles in A Simple Favor, The Boys in the Band, and The Prom.

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Thandie Newton as Mona

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (8)

Thandie Newton voices hormone monstress Mona, who follows Missy around. Newton has appeared in a number of movies, such as Mission: Impossible 2, Crash, RocknRolla, and Solo: A Star Wars Story, as well as in the TV shows ER and Westworld.

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Maria Bamford as Tito the Anxiety Mosquito

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (9)

Maria Bamford is the voice of Tito the Anxiety Mosquito, a new threat the group will encounter at camp and which will follow them when they go back home. While Bamford is best known for her comedy work, she has voiced a number of characters in various projects throughout her career, such as the TV shows Hey Arnold!, Catdog, Kick Buttowski: Suburban Daredevil, and Adventure Time.

Fred Armisen as Elliot Birch

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (10)

Fred Armisen voices Elliot Birch, Nick’s father whose favorite activity seems to be to share inappropriate stories and make his children (and their friends) uncomfortable. In previous seasons, Armisen also voiced the ghost of Antonin Scalia, a bus driver, Stavros, and Bob the Hormone Monster. Armisen is best known for his work in SNL and the TV show Portlandia.

Jordan Peele as the Ghost of Duke Ellington

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (11)

Jordan Peele lends his voice to the Ghost of Duke Ellington, who lives in Nick’s house and often offers him and his friends advice, though he’s not the best at it. Peele has also voiced Jay’s hyper-aware dog Featuring Ludacris and the ghosts of Freddie Mercury, David Bowie, and Prince, as well as Atlanta Claus, a DJ, Missy’s father, and Patrick Ewing. Peele is known for his comedic roles, mostly in the TV show Key & Peele, and for his work as a horror filmmaker, with the movies Get Out and Us.

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Big Mouth Season 4 Guest Stars

Big Mouth Season 4 Cast & Character Guide: What The Voice Actors Look Like (12)

John Oliver as Harry, a camp counselor – Oliver is a comedian and political commentator best known for being the host of Last Week Tonight with John Oliver.

Seth Rogen as Seth Goldberg, a camper and Nick’s new friend – Rogen is known for his roles in the movies Knocked Up, Pineapple Express, This is the End, The Interview, and The Disaster Artist.

Zach Galifianakis as Gratitoad – Galifianakis has appeared in The Hangover trilogy, Due Date, Birdman, A Wrinkle in Time, and Between Two Ferns.

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Lena Waithe as Lena, one of Missy's cousins – Waithe has appeared in the movies Ready Player One, Bad Hair, and the series Dear White People and Westworld.

Sterling K. Brown as Michael Angelo, Jessi's new boyfriend – Brown is known for his roles in the movies Black Panther and The Rhythm Section, as well as the TV shows Army Wives, The People v. O.J. Simpson: American Crime Story, and This Is Us.

Paul Giamatti – Giamatti is best known for his roles in the movies Saving Private Ryan, Planet of the Apes, Sideways, Cinderella Man, The Illusionist, 12 Years a Slave, and Saving Mr. Banks.

Josie Totah as Natalie, a transgender camper – Totah is best known for playing Stuart Wooten in Jessie and Lexi in Saved by the Bell.

Sinbad as himself – Sinbad is a comedian best known for his comedy specials.

Emily Altman as "Milk", a male camper who is often told to shut up – Altman has worked as a writer for shows like Inside Amy Schumer, Unbreakable Kimmy Schmidt, and Big Mouth.

June Diana Raphael as Devin, a popular girl at school – Raphael has appeared in various movies and TV shows, most notably The Disaster Artist, NTSF:SD:SUV::, Burning Love, New Girl, and Grace and Frankie.

Jak Knight as Devon, Devin’s boyfriend – Knight has worked as a writer for Black-ish and Big Mouth.

Paula Pell as Barbara Glouberman, Andrew’s mother – Pell was a writer for SNL and 30 Rock, appeared in the movie Wine Country, and played Ron Swanson’s mother in Parks & Recreation.

Richard Kind as Marty Glouberman, Andrew’s father – Kind is best known for playing Dr. Mark Devanow in Mad About You.

Seth Morris as Greg Glaser, the perpetually stoned father of Jessi and ex-husband of Shannon Glaser – Morris has appeared in TV shows like Veep, Superstore, and The Good Place in minor roles.

Jessica Chaffin as Shannon Glaser, the mother of Jessi & the unfaithful ex-wife of Greg Glaser – Chaffin has appeared in various projects in minor roles, most notably Zoey 101, where she played Coco Wexler.

Gina Rodriguez as Gina Alvarez – Rodriguez is best known for playing the lead role in the series Jane the Virgin and the movies Miss Bala and Someone Great.

Joe Wengert as Caleb – Wengert appeared in minor roles in shows like Modern Family and New Girl.

Jon Daly as Judd Birch – Daly played various roles in Kroll Show.

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Kat Dennings as Leah Birch – Dennings is best known for her lead role in 2 Broke Girls and her roles in the movies Nick and Norah’s Infinite Playlist, Thor, and Thor: The Dark World.

Chelsea Peretti as Monica Foreman-Greenwald – Peretti plays Gina Linetti in Brooklyn Nine-Nine.

Heather Lawless as Jenna "Jay's Mom" Bilzerian, Jay's mother – Lawless is best known for her stand-up performances.

Mark Duplass as Val Bilzerian, Jay’s brother – Duplass appeared in the movies Safety Not Guaranteed, Zero Dark Thirty, Creep, and Creep 2, as well as the TV show The Morning Show.

Paul Scheer as Kurt Bilzerian, Jay’s brother – Scheer is best known for playing Andre in The League and Chuck in The Good Place.

David Thewlis as Shame Wizard – Thewlis is best known for playing Remus Lupin in the Harry Potter film series and Sir Patrick Mordan/Ares in Wonder Woman.

Gil Ozeri as Brad, a couch cushion – Ozeri has worked as a writer for Brooklyn Nine-Nine, Big Mouth, and Happy Endings.

Kristen Bell as Pam, a pillow – Bell played the lead role in Veronica Mars and The Good Place.

Kristen Wiig as Jessi's genitals – Wiig is best known for her work in SNL and for her roles in the movies Bridesmaids, The Skeleton Twins, and Wonder Woman 1984.

Harvey Fierstein as Jerome, an older gay man who lives at Guy Town – Fierstein appeared in Mrs. Doubtfire, Independence Day, and voiced Yao in Mulan.

Jean Smart as the Depression Kitty, a cat employed in the Department of Puberty – Smart’s acting credits include the series 24, Samantha Who?, Legion, and the movie A Simple Favor.

Zachary Quinto as Aiden, Matthew's boyfriend – Quinto played Spock in the movies Star Trek, Star Trek Into Darkness, and Star Trek Beyond, and Oliver Thredson in American Horror Story: Asylum.

Ali Wong as Ali, a pansexual student – Wong played the lead role in the rom-com Always Be My Maybe.

Julie White as Kimberly MacDell, Matthew's mother – White’s acting credits include Transformers: Revenge of the Fallen, Transformers: Dark of the Moon, Lincoln, and A Very Murray Christmas.


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Who are the guest voices on Big Mouth season 4? ›

But the following guest stars have also been confirmed: Seth Rogen, Josie Totah, Lena Waithe, Quinta Brunson, John Oliver, Sterling K. Brown, Paul Giamatti, Maya Erskine, and Anna Konkle.

Who voices Boys 4 Life in Big Mouth? ›

Ed Helms, Adam Levine, and Matt Rogers as Bros 4 Life

Three members of the "famous post-9/11 boy band" Bros 4 Life appear on Lola's doorstep, each one being her possible dad.

Who are the new voices on Big Mouth? ›

Newbies like Ed Helms, Annaleigh Ashford, Amber Ruffin, and Peter Capaldi will be making voice cameos in Season 6, along with other notable celebrities. Learn more about the new stars joining Big Mouth below.

Who plays the British hormone monster? ›

Mona the Hormone Monster voiced by Thandiwe Newton

With her British accent, she dolls out advice to convince others to be more like her.... which is pretty badass. Thandiwe Newton (formerly credited as Thandie Newton) is a British actress.

Why did they change Missy's voice in Big Mouth? ›

Why did Missy's voice change and why was Jenny Slate replaced? Missy's voice changes in season four of Big Mouth because, behind the scenes, Jenny Slate and creator Nick Kroll decided it was wrong for a black character to be voiced by a white actress.

Who took over voicing Missy on Big Mouth? ›

Edebiri, who also joined the “Big Mouth” writers room for the fifth season, takes over the role from Jenny Slate, who had voiced the character since the series premiered.

Is Caleb autistic in Big Mouth? ›

Voice Actor

Caleb is a recurring character in Big Mouth. He is a student at Bridgeton Middle School, who participates in the school jazz club and works as the cameraman for the school news, which makes him part of the AV club. He is an asocial, yet very intelligent autistic kid who can't read social cues.

Who plays Nick's pubic hair? ›

Kroll spoke about his late pubescence and mentioned that Big Mouth characters, Nick's two measly pubic hairs, are voiced by Craig Robinson and Jack McBrayer.

Who voices the tampon in Big Mouth? ›

Mark Rivers: Michael Stipe Tampon.

Who voices the worm in season 5 of Big Mouth? ›

Voice Actor

Rochelle Hillhurst is a hate worm turned lovebug, who mentors Missy Foreman-Greenwald and fuels her hatred and love. She first appeared in "Best Friends Make the Best Lovers". She also appears as a main cast member of Human Resources, serving as the lovebug of Doug Frederick. She is voiced by Keke Palmer.

Who plays Mary's baby in Big Mouth? ›

Cole Escola as Montel

If you're a fan of Search Party, The Other Two, or Hacks, chances are you recognize the voice of Maury and Connie's (Maya Rudolph) new child. The sassy Montel is voiced by Cole Escola.

Did Leah's voice change Big Mouth? ›

Kat Dennings (Leah's original voice actress) quit the show when she got too busy with other projects. Starting with Season 5, Leah's new voice actress has been Chloe Fineman. Leah is one of the characters to have their voice actresses changed after Season 4.

Who plays Missy's new hormone? ›

Thandiwe Newton (as Mona the Hormone Monstress)

As Missy's hormone monstress, Mona is a brassy, brazen bridge to adulthood.

What is Missy's hormone monster? ›

Mona is a recurring antagonist inBig Mouth. She is the hormone monster of Missy, and much like many of the other hormone monsters, Mona is villainous for corrupting her pawn's young mind and forcing her to behave inappropriately in public.

Does Nick Kroll do all the voices in Big Mouth? ›

He is the creator of the show and the voice of Nick Birch and various other characters of Big Mouth.

Does Missy have a different voice in season 5? ›

In June 2020, Jenny decided to step down from voicing Missy so the nerdy girl could be voiced by a Black actress instead. Ayo Edebiri, also a writer for Big Mouth before she took over the role of Missy, started playing the character in Season 4, Episode 9 and continued in the role for Big Mouth Season 5.

How old is Missy Big Mouth? ›

When we meet 13-year-old Missy Foreman-Greenwald in season one of the Netflix animated series Big Mouth, she's a shrinking violet who still talks to her stuffed animals.

Is Lola from Big Mouth a girl or a boy? ›

Lola is a loud girl, who some people hate. Lola is melodramatic, attention-seeking, boy-crazy, and quick to anger. Lola is quite egotistical and believes she's a lot better than she really is.

What race is Jay in Big Mouth? ›

Jay is a 13-year-old Armenian-Greek (former part indicated, as his surname is Armenian; latter part confirmed in Season 4 Episode 10) tan-skinned boy with black spiky hair, brown eyes, big black eyebrows that almost form a unibrow, big ears, and a hooked nose.

What race is Ali in Big Mouth? ›

Ali is a young Asian girl and the new student at Bridgeton Middle School who was transferred from Our Lady in the Water and she quickly became the "it girl" at school after admitting that she is pansexual. She first appeared in "Rankings". She is voiced by Ali Wong.

Who is Nick's hormone monster after Connie? ›

Rick the Hormone Monster, an old, dysfunctional yet enthusiastic hormone monster who follows Coach Steve and later Nick. He soon retires, however, after Steve loses his virginity, handing his position as Nick's hormone monster to Tyler. He becomes Nick's hormone monster again after Nick and Connie part ways.

Is Big Mouth a true story? ›

Big Mouth is very much based on true stories

Everything came down in front of my childhood crush," Kroll told NowThis Entertainment, referencing a mortifying "Big Mouth" moment.

Where is Big Mouth located? ›

Westchester County is where Big Mouth takes place. It is a nonfictional county located in New York. While not explicitly stated, the show likely takes place in Bridgeton given the names of some buildings including Bridgeton Middle School, Bridgeton High School, and Bridgeton Mall.

Is Steve from Big Mouth autistic? ›

In "Requiem for a Wet Dream", Miss Benitez diagnosed Coach Steve with a learning disability, explaining his lack of ability to read. Having a brother with a learning or intellectual disability, she thought it was her place to help teach him how to read.

Who is Jessie from Big Mouth based on? ›

Jessi is based on someone that Nick and Andrew [Goldberg, another of the show's creators] grew up with, and I think I embody some qualities that remind them of this young woman: a girl who is just as funny and smart as the boys around her, if not smarter.

Who voices the Big Mouth vampire? ›

Actor and comedian Jak Knight, who voiced DeVon on Netflix's Big Mouth, wrote for black-ish and co-created Peacock's Bust Down, has died at the age of 28.

WHO plays Leah Birch in season 5 of Big Mouth? ›

Big Mouth (TV Series 2017– ) - Kat Dennings as Leah Birch, Lorriane the Hormone Monstress - IMDb.

Will there be a season 7 of Big Mouth? ›

Big Mouth has been confirmed for a seventh season, much to the fans' joy. It was renewed earlier in 2022, not long after its spin-off, Human Resources, debuted on Netflix.

How old is Jessi in Big Mouth season 5? ›

She is a sarcastic, popular, and intelligent 13-year-old girl with physical/emotional development, who goes to Bridgeton Middle School, where she's friends with Nick, Andrew, Jay, Missy, and Matthew.

Who voices Connie's baby? ›

But many would argue that there's no bigger change than the addition of a child, which is exactly what Season 6 brought for hormone monsters Connie (Maya Rudolph) and Maury (Nick Kroll). The two gave birth to the hormone baby, Montel, voiced by comedian Cole Escola.

Will there be a 6th Big Mouth season? ›

Big Mouth is created and executive produced by Nick Kroll, Andre Goldberg, Mark Levin, and Jennifer Flackett. Ahead of its fifth season, the series had already secured a sixth season renewal from Netflix. When I'm not feasting my eyes on the Lord of the Rings trilogy, I'm probably watching some MMA fights.

What gender is Montel from Big Mouth? ›

Given that Montel is non-binary, it's only appropriate that they're voiced by a non-binary actor. Montel is voiced by 35-year-old queer actor, writer, comedian, and alt-cabaret performer Cole Escola, who has hilariously described themself as "trailer trash born and raised in rural Oregon."

Is Seth Rogen in Big Mouth 4? ›

Tito is voiced by comedian Maria Bamford, which is pitch perfect casting, while other guest stars this season include Zach Galifianakis, Seth Rogen, Josie Totah, Lena Waithe, Quinta Brunson, John Oliver, Sterling K.

Who is Pamela Adlon in Big Mouth? ›

Big Mouth (TV Series 2017– ) - Pamela Adlon as Sonya - IMDb.

Who is pregnant in Big Mouth? ›

Yes, Maurice is pregnant. Starting a family is a big decision; is it really one you want to be making on a spin-off show? Regardless, that's what hormone monsters Connie (the Emmy winning Maya Rudolph) and Maurice (Nick Kroll) have done.

Is Nick from Big Mouth a girl? ›

At the start of the series, Nick Birch appears as a 12-year-old boy, going to Bridgeton Middle School. His best friends are Andrew Glouberman, Jessi Glaser, and Jay Bilzerian.

Did the voice of Missy change? ›

Partway through Big Mouth's just-released fourth season, fan-favorite Missy is given a new voice — that of comedian Ayo Edebiri, who had fallen in love with the character as a college student and was already part of the show's writers room. (Slate will continue voicing other characters on the show.)

Who is Missy's hormone monster? ›

Mona is a recurring antagonist inBig Mouth. She is the hormone monster of Missy, and much like many of the other hormone monsters, Mona is villainous for corrupting her pawn's young mind and forcing her to behave inappropriately in public.

Where is Big Mouth filmed? ›

The Big Mouth is a 1967 American comedy film produced, directed, co-written, and starring Jerry Lewis. It was filmed in San Diego and features Frank De Vol as an onscreen narrator.

Who voices Sonya the love bug? ›

She first appeared in "Lovebugs". She is voiced by Pamela Adlon.

Who is Jessie from Big Mouth in real life? ›

Jessi Klein (Born August 19, 1975) is an American comedy writer and stand up comedian. She plays the role of Jessi Glaser, a main character in Big Mouth.

Who voices Cocky Balboa? ›

Nick Kroll on Instagram: “It was truly an honor to voice one of my heroes, champion cockfighter Cocky Ballsboa”


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