For characters that debuted in Human Resources, see here.
The real-life adult version of Nick Birch, head of the Resource Department, and creator of Big Mouth itself.
- As Himself: He is very much the real life Nick Kroll who created the show.
- Freudian Excuse Is No Excuse: Makes it very clear that no matter what personal issues you have, they're yours to deal with, and blaming the rest of the world for your problems will just make you more miserable. When all you're putting out is hate, hate is all you'll get back.
- I Hate Past Me: Has little sympathy for his younger self, calling him out for his selfishness and Never My Fault attitude.
- Roger Rabbit Effect: Appears as his real live-action self in the animated world he created.
- Teeny Weenie: Since he's the adult version of Nick, he lived through the same penis-related angst his younger self is currently dealing with, and gives him the unfortunate news that he's still only going to be average one day.
Human Resources Creatures
The Hormone Monsters
- Allegorical Character: They're one for puberty as a whole, and represent the teenager's Id and most base instincts of fighting and screwing.
- Anti-Mentor: Pretty much every Hormone Monster depicted so far is one of these. While they encourage sexual activity, they also tend to try to push their kids to become juvenile delinquents. Nick, Andrew and Jessi in particular are prone to complain that their Hormone Monsters are more of a hindrance than a help.
- Anything That Moves: Most of them find everything sexual and seem to be attracted to all genders. Maurice openly acknowledge he finds tomatoes and sneezes sexy things.
- Big Red Devil: They've all got horns, cloven hooves, tower over the protagonists and a few have either barbed tails or Van Dyke beards. Their sexual appetites and penchant for tempting kids into mischief also add to their devilish natures.
- Blue-and-Orange Morality: Their mentality is driven purely by whatever gives them or their kids pleasure, regardless of the consequences.
- Everyone Has Standards: Their whole purpose is to lead people to embrace their basic emotions, usually encouraging extreme selfishness and downright immoral behaviour in name of sex, violence or attention. Yet, even they have lines they won't cross, like porn addiction.
- Despite being the main source of gross humor, vulgar language and encouragement of unsavory things that have to do with masturbation, perversion and sex, even they can be grossed out by some things; it's just very hard according to Maurice.Maury: (after hearing Andrew's plan to arouse his cousin) Ugh... I just got chills. You know how hard it is to gross out a hormone monster?
- Despite being the main source of gross humor, vulgar language and encouragement of unsavory things that have to do with masturbation, perversion and sex, even they can be grossed out by some things; it's just very hard according to Maurice.
- Fat Bastard: Maurice and Connie both have noticeably big guts, although Mo's is more of a beer belly while Connie is just curvy.
- The Friend Nobody Likes: Most of the other Human Resources creatures hate the Hormone Monsters for constantly having sex in the office.
- Horned Humanoid: Maurice has one horn on the top of his head, while Connie has two.
- Invisible to Adults:
- Can only be seen by children and a few childlike adults like Coach Steve.
- An episode set in the future has Andrew watching his son talk to a monster (Implied to be Maury) that neither him nor the viewer can see.
- Maurie once had a long anti-homophobic rant at Matthew's mother then admitted she didn't hear a word of it.
- Long-Lived: Maury claims to have come into existence when life first developed on Earth and Connie mentioned they used to live on the ancient continent, Pangaea.
- Masculine, Feminine, Androgyne Trio: In Season 6 Maury and Connie have a baby named Montel, who they decide will be gender-neutral until they're all grown up.
- Not-So-Imaginary Friend: It varies, but they seem to be objectively real, or at least real to the ones they are dealing with, with Nick being able to talk with Maurice when he wants to be talked to. Maury is also Matthew's Hormone Monster, demonstrating that Maury works more than one "case" (like a social worker). Caleb is capable of seeing Maurice and Maury knows his name. Similarly, Lola at one point appears to answer to Connie's passionate Rousing Speech with an amen. Later, Connie also becomes Nick's Hormone Monstress in addition to working with Jessi, although she is apparently able to be visible to and interact with them separately even when they are in the same place.
- Thinking Up Portals: Can open portals between Earth and their Human Resources dimension.
- Toxic Friend Influence: Zigzagged. Sometimes, they are a grounding presence in the kids' lives, but they also often push them to embrace their nastier instincts, like their hedonistic tendencies, and in Jessi's case even shoplifting.
- Unresolved Sexual Tension: If their make out on "Head Pusher" is anything to go by, they still have feelings for each other and are clearly attracted to each other despite their troublesome past. As seen in the finale, Maurice still has a tattoo of Connie's name on his forearm.
- Working with the Ex: Connie and Maurice dated back when Pangaea was still around, but broke up due to issues. They still have to work together as they have to deal with children who are involved with each other, specially in regards to Missy and Andrew's romance.
One of the many monsters that guides boys through puberty.
- Affectionate Nickname: People close to him call him "Maury".
- Amazon Chaser: He's in an on-off relationship with the assertive Connie and encourages Andrew to think about Susan's "sinewy arms" while he's masturbating.
- Anything That Moves: Maury finds almost everything sexual. Men, women, inanimate objects, to Garrison Keillor's decapitated head.
- Astonishingly Appropriate Appearance: His nose looks like a flaccid dick. And apparently gets erect, too.
- Berserk Button: He does not take kindly to being called the puberty fairy.
- Trying to ignore him and suppressing ones hormones can also make him violent and more aggressive.
- Bizarre Alien Biology: He has several dicks. Several disembodied, featureless, fuzzy (not hairy, fuzzy, as in, "completely covered in fur") dicks that he carries around in a bag. Also, at least one of them talks. That same dick we've seen talking is also Jewish, but just that one. Also, he can use them as weapons by throwing them like shuriken. Yeah.
- Blatant Lies: When a minor earthquake happens, Maurice says he did it, then admits that he was taking credit "just like ISIS".
- Born as an Adult: Appeared fully formed at the same time life originated in Earth.
- Bunny-Ears Lawyer: Andrew doubts his expertise but as the series goes on it's made clear that he's basically the only competent male hormone monster in the department.
- Catchphrase: When someone pisses Andrew off, he yells out, "RAGE!!! RAGE!!! FUCKING RAGE!!!!" Borrowed by Andrew in "My Furry Valentine".
- Chivalrous Pervert: The most sex-obsessed member of the entire cast, he's even willing to have sex with a wall. He also has the kids' best interests at heart, and encourages them all to be comfortable in their own skin. He also tries to talk Andrew out of his porn habit once it's become unhealthy.
- Depraved Bisexual: Is attracted to many women, including Connie, and admits that he'll sometimes screw guys, and makes out with the Shame Wizard at one point. He once hate-fucked a decapitated head. You don't get more depraved than that. His bisexuality is justified, since he works for children of all sexualities going through puberty, so it makes sense that he'd understand what it's like to be attracted to any gender.
- Drag Queen: According to him, his drag name is "Maury Antoinette", and he shows up dressed as the historical figure for a gag.
- Everyone Has Standards: Sure, he's a depraved sex fiend who encourages all sorts of odd behavior from Andrew, but there are some lines he knows not to cross.
- He's at a loss for words when Jay's brothers force Andrew and Nick into playing a game of Jizz-cuit.
- When Andrew starts to become addicted to internet pornography, Maury tries his best to dissuade after sensing that Andrew's porn habits are becoming a compulsion.
- Hearing that the Shame Wizard collects Nazi dildos disgusts him no end.
- Maurice is clearly uncomfortable with Andrew's idea of trying to prove Lars can walk and tries to dissuade him from doing it many times.
- When he learns that he and Andrew accidentally attended a Neo-Nazi rally, he's ready to burn the place down ala Inglourious Basterds.
- In Human Resources (2022), he turns down Connie's suggestion to roleplay as Joan and Melissa Rivers because that "crosses a line" for him.
- Guttural Growler: He has a deep, gravelly voice ala Will Arnett. It's also explicitly mentioned by Word of God that Maury is essentially Nick Kroll doing a practically pitch-perfect imitation of Will Arnett. Played for Laughs in season 5, where it turns out Maury himself thought Arnett did his voice, and is disappointed to find out it's Kroll.
- The Hedonist: Pretty much everything Maury encourages involves sexual pleasure.
- Heroic Sacrifice: Sacrificed himself to the Pornscape so Nick and Andrew would get out. He manages to come back by the end, stating that he fucked his way out of there.
- Hidden Depths: In Human Resources, he reveals that he wants to start a family.
- Insistent Terminology:
Maurice: Why is this so hard for you?!
- He is the "Hormone Monster". He even gets visibly pissed when Nick calls him the Puberty Fairy.
- It's a "Pornscape", not a Porn World. Again, he gets pissed at Nick for not using the term.
- Jerkass Ball: Despite being a fairly chummy guy in general, he's not incapable of saying or doing some considerably jerky things to others. Some notable examples being where in Human Resources, he cheerfully insults Emmy (who was already feeling down on herself) by telling her that her humiliating screw-ups entertain him and then guilt-trips Connie about her (initial) decision to not parent their child he becomes pregnant with.
- Lovable Sex Maniac: He's a sex-crazed fiend, but is one of the more popular characters on the show.
- Meaningful Name: He is most likely named for Maurice Sendak, the Caldecott-winning author/illustrator of Where the Wild Things Are.
- Medium Awareness: He's the first and most frequent character to acknowledge that he's in a TV show.
- Mister Seahorse: Maury gets pregnant during Human Resources.
- Not-So-Imaginary Friend: The first few episodes implied he was Andrew's Imaginary Friend before showing that there were other Hormone Monsters that could be seen by children.
- O.O.C. Is Serious Business: When Andrew gets with Lola, he starts to develop an addictive personality. First to cigarettes, then alcohol, and eventually cocaine.
- Parental Favoritism: While not a parent, out of all the children he has to watch, he likes Matthew the most.
- Really 700 Years Old: Like all Hormone Monsters, Maury is as old as life on Earth itself, and reminisces with Connie about the dinosaurs disappearing (they didn't die out, turns out they all left on a space ship). More recently, he was Duke Ellington's hormone monster in the 1910's.
- Shipper on Deck: A big supporter for Jay and Matthew becoming a couple. In fact, Maury tattooed is butt-cheeks with Jay and Matthew's faces kissing each other and threatens to quit being Matthew's hormone monster if Matthew let Jay leave his room
- Sir Not-Appearing-in-This-Trailer: In the trailer for season four, while Connie and Mona got plenty of screen time, Maury was nowhere to be found, and people in the comments took notice.
- Strange Minds Think Alike: He really likes to hang out with Jay, since the boy is a proud sex deviant, with a tendency to invent new things on the area of jacking off. Maurice takes notes on how he fucks his pillow claiming that Jay might be a genius.Maurice: You're a little freak. I like hanging out with you.
- Voice of the Legion: Dips into this whenever he's angry.
Constance "Connie" LaCienega
Another hormone monster who becomes Jessi's guide through puberty. At the end of season 2, she becomes Nick's new hormone monster, despite Nick being a boy.
- Big Beautiful Woman: Is noticeably curvaceous and, as the above-image shows, has a rather large butt.
- Bridge Bunny: The Star Wars parody skit in "The Planned Parenthood Show" had her filling this role as a parody of Chewbacca.
- Did You Just Flip Off Cthulhu?: Shows no fear over the Shame Wizard, shortly after Maurice was stumped by him.
- Dramatic Irony: When she finds out Nick likes Jessi, Connie chooses to leave Nick to only focus on Jessi's needs. But the way Connie handles breaking up with Nick leaves him in a far worse spot than before and almost leads to him being taken over by Nick Starr. Afterwards, Connie makes next-to-no progress with Jessi because of Tito and Depression Kitty, and it didn't get any better until Jessi got outside help. In the long term, Nick was the one who needed the most help, while Connie couldn't even do her job with Jessi properly despite letting go of Nick for it.
- Even the Girls Want Her: Mona is obsessed with her!
- Expressive Hair: When pissed, her hair starts to float and behave like tentacles.
- Fiery Redhead: She's extremely feisty and sassy, and more than often exerts this influence over girls, especially Jessi. And at worst, she can be very ill-tempered and impetuous.
- Gasshole: When she farts, it sounds like smooth jazz and smells (to her) like raw honey (although Nick finds it repulsive).
- Given Name Reveal: "Sugarbush" reveals that she has a surname: LaCienega.
- Guy on Guy Is Hot: When Jessi makes a plan with Matthew to get Aiden and him alone on the former's room so they can make out in peace, Jessi tells him that she won't stay to watch, which prompts Connie to tell her to not negotiate against herself.
- Large Ham: While not as profane as Maurice, she strikes a lot of overly dramatic poses and speaks with the delivery of a fire-and-brimstone preacher.
- Mama Bear: Connie shows this attitude to Jessi in season 2 when she gets antagonized by the Shame Wizard and the Depression Kitty. She also acts protective over Nick.
- More Deadly Than the Male: Her influence on Jessi is arguably more volatile than Maury's is on the boys. In her first appearance, Connie convinced Jessi to act like an unstable brat around her mother with zero provocation. Maury on the other hand hasn't tried to turn Nick and Andrew against their own parents. Nick Kroll describes Maury as horniness and anger, with Connie being more nuanced and emotional.
- The Nicknamer: Often calls Jessi nicknames. Particularly foods, including Gyoza (Japanese dumplings) and Pupusa (Salvadorian stuffed tortilla). She extends the same treatment to Nick, calling him tortellini (Italian ring-shaped pasta) after she's assigned to him.
- Non-Standard Character Design: A subtle one, but she's the only Hormone Monster that doesn't have a tail.
- O.O.C. Is Serious Business: In the valentine's special, she can only watch with an uncomfortable look as Andrew has a breakdown, calling it "weird-ass toxic masculinity"
- Prehensile Hair: She can use her hair to grab and even lift Jessi and has total control over it.
- Rousing Speech:
- She gives one to Jessi in her Bat Mitzvah, when she freezes on the altar as she notices that her mother is sleeping with her Cantor. Connie states that she is a woman now, and she can take what the world throws at her in her boxy ass dress.
- She does this again during the ASSEs when both Nick and Jessi are feeling overwhelmed by pressure during the last day of exams.
- Sassy Black Woman: Carries herself in this manner. Being voiced by Maya Rudolph helps.
- Skewed Priorities: Connie's main shortcoming as Jessi's Hormone Monstress is that she is so focused on encouraging general misbehavior that she doesn't consider whether or not it is actually puberty-related (e.g. shoplifting). This ultimately gets her temporarily taken off Jessi's case by Human Resources.
- Smells Sexy: Jessi mentions she smells great, to which she explains she doesn't use deodorant and only takes bubble baths (pronounced "bubba baffs").
- Took a Level in Kindness: After influencing all kinds of bad behavior from Jessi in Season 2, Connie seems to have learned her lesson and starts to become more responsible during Season 3.
- Toxic Friend Influence: She starts developing into one during Season 2 as Jessi starts to deal with the ramifications of her parents divorcing. This is deconstructed as her influence ends up making Jessi's situation even harder. Thankfully, she manages to get her act together and becomes more responsible in Season 3.
- Twincest: She was born 69ing her sister, Bonnie.
- Unwitting Instigator of Doom: In Season 4, Connie leaves Nick to give her full attention Jessi, who needed her more in that moment. Unfortunately, her leaving Nick when he was dealing with intense anxiety fueled his fear of getting close to others and left him with Rick, who couldn't be any less helpful at the time. This leads Nick to making several poor decisions without proper guidance and almost allows Nick Starr to take over his body in the season finale.
- Verbal Tic: The way she pronounces her B's, notably the way she says "bubble bath" (or, as some fans spell it, "bubba baff").
An unwashed, beaten up male hormone monster with some, er, unique ideas on how human interactions and relationships work. He appears to be Coach Steve's personal Hormone Monster, which explains a lot. There's also a chance that he might be Lizer's hormone monster.
- Abandoned Catchphrase: In Season 5, he doesn't use his "What are you gonna do?" catchphrase once, even though the last moment of the previous season was a whole song dedicated to it.
- The Bus Came Back: After Nick and Connie break up, Rick becomes Nick's hormone monster again. Eventually, Nick ultimately accepts this.
- But Now I Must Go: He chooses to retire after Coach Steve finally losing his virginity.
- The Cameo: After retiring in Season 2, Rick still makes the occasional appearance in Season 3.
- Catchphrase: "What are you gonna do?" In the end of season 4, he gets a whole song about it.
- Elderly Immortal: Looks far older than both Maurice and Connie, despite all of them being presumably ageless beings as old as life on Earth itself. Then again, his signs of "age" might actually just come from a rougher life. One possible reason he's aged so badly is that he's been waiting 30 years for Coach Steve to lose his virginity.
- Fun with Subtitles: In season 2, he gets automatic subtitles due to being The Unintelligible.Connie: Rick, I can never understand what you're saying.Rick: That's why they have subtitles.
- Gonk: He's balding, roughed-up face, grey skin, a greasy twisted beard and a wonky horn.
- Hidden Depths: Apparently, he helped Maurice abandon for a short while, at least his Lovable Sex Maniac ways, off-screen. How he did that, being as perverted as your average hormone monster (just in a really awkward way), is a mystery. Of course, since most of the episode in which this occurs turns out to be a dream, this may be subverted.
- He is the one who manages to get Connie out of her sadness and make her go search for Jessie again. So he is smarter than he looks.
- He does seem to believe he was a bad hormone monster to Steve, and genuinely cares about him.
- He gives Steve some good advice and motivating words in occasions. Which is actually impressive.
- Mysterious Past: Not much is known about his past, or why he looks like he looks.
- Nice Guy: While like all hormone monsters he condones violence and perversion, he is overall a friendly, forgiving guy. When Nick tries to kill him, he acts like he is angry for 5 seconds until he says he loves him and does not have an issue with it.
- Took a Level in Jerkass: Starts acting strangely menacing and aggressive in season 5, much to Nick's confusion. It's never really explained why, though it might be because Nick has now entered puberty in earnest.
- Ultimate Job Security: Human Resources reveals that he can't be fired from the Resource Department, because he owns the entire building thanks to a family inheritance.Rick: *while lighting a cigar with a dollar bill* Generational wealth, baby! My grandparents did some things I am not proud of!
Missy's Hormone Monstress.
- Abhorrent Admirer: She hits on Connie in an extremely sexual way that leaves Connie understandably creeped out. Note that it takes a lot to make a Hormone Monster want to back away.
- Aliens of London: Despite being a fantasy creature who resides in America, she has a noticeable British accent.
- Dominatrix: Some promotional material referred to her as a "Hormone Mistress."
- Excessive Evil Eyeshadow: Has violet mascara and carries herself in a somewhat villainous manner, with her manic laughter punctuated by lightning.
- Large Ham: She's bombastic and prone to singing at random.
- Meaningful Name: "Mona" sounds like "moaner" and as standard for her species, she's a Lovable Sex Maniac.
- Prehensile Tail: Unlike the other Hormone Monsters, she's got a long barbed tail that can emote. It can also shrink down to the normal stub other Hormone Monsters have.
A younger and very naïve newbie hormone monster that is assigned to Nick.
- Ass Shove: Gavin likes to put cigarettes up his butthole.Tyler: He calls it his asstray.
- Beleaguered Assistant: He works for Gavin, who physically and emotionally abuses him.
- Body Horror: The way his horn grows is shown to be quite painful.
- Cone of Shame: Given a literal one by the Shame Wizard in "Smooch or Share".
- Fetish: He shows signs of having a mommy kink, constantly mentioning Nick's mom, calling Connie a "strong mommy" and even calling Elliot a "tiger mommy" when impressed with him.
- It's All About Me: Nick calls him out on the fact that his advice is only for his own pleasure, which benefits neither of them.
- The Mole: He is actually working for the Shame Wizard, believing him to be an actual nice guy and feeding him information.
- Too Kinky to Torture: Enjoys it when the Shame Wizard starts hitting him with a newspaper.
- Naïve Newcomer: Unlike the other Hormone Monsters, Tyler is a full newbie that has no prior experience before taking over as Nick's Hormone Monster and has very little knowledge of everything related to puberty.
- Youthful Freckles: He has a smattering of them to emphasize his youth and inexperience.
An "alpha male" Hormone Monster.
- Bitch in Sheep's Clothing: At first he seems like a confident macho-man, but he's really nothing more than an aggressive, abusive bully. Especially to Tyler.
- Book Dumb: He doesn't seem to understand technology and needs Tyler to help him minimize Safari.
- The Bully: He enjoys kicking the shit out of Tyler both physically and emotionally, and enjoys picking on Nick during their brief interaction.
- Gag Penis: The thing is enormous and also functions as a fire hose.
- Heteronormative Crusader: Before Natalie came out as trans, Gavin kept pushing her to stop being feminine and go get some pussy.
- Hypocrite: Despite being a Heteronormative Crusader, in Human Resources (2022) all hormone monsters are shown to have bisexual tendancies, himself included.
- Ink-Suit Actor: His slick hair and eyebrows were clearly taken from his voice actor.
- Jerkass: He's an aggressive, swaggering asshole.
- Killed Off for Real: Apparently killed in the first season finale of Human Resources (2022) while attempting to restore the electricity.
- Laser-Guided Karma: After acting aggressive and judgmental towards Natalie, he gets trapped behind a wall and unable to talk to her when she starts taking puberty blockers.
- Mean Boss: To Tyler, his assistant whom he constantly abuses.
- Testosterone Poisoning: He's jacked and has a violent streak, hinting at steroid abuse. His aggressive masculinity and pushy behavior makes it more symbolic that he was the hormone monster for a closeted transgender girl.
- Voiced by: Jemaine Clement
- Ink-Suit Actor: Bears a definite resemblance to Jemaine Clement, his voice actor.
- New-Age Retro Hippie: He resembles an old-school hippie, supporting Andrew's nonviolence pact and doing a lot of drugs.
- Nice Guy: Simon is a friendly, emotionally intelligent fellow and encourages Andrew to listen to Jay rather than trying to solve his problems.
- Noodle Incident: He and Maury were once convicted for jerking off in Wimbleton.
- Punny Name: His name is a play on the game Simon Says.
Bonrad "Bonnie" LaCienega
- Voiced by: Maya Rudolph
- Identical Twin Id Tag: Her bob haircut and glasses are the only ways she looks different from Connie.
- Remember the New Guy?: Connie has never referenced having a sister before season 5.
- Strong Family Resemblance: She looks almost exactly like Connie, but with shorter hair and glasses.
- Theme Twin Naming: Her name rhymes with her sister's.
- Twincest: She and Connie came out of the womb sixty-nining each other.
A Hormone Monster seen in the season 2 finale.
- Affectionate Nickname: The Shame Wizard called him 'Stan the Man' in order to be friendly with him, but this does not disarm Stan's wariness of him.
- Jerkass Has a Point: While he could’ve been politer about it, he’s not wrong when he says the Shame Wizard could make him feel bad, since he does that with a lot of people and creatures.
- Shout-Out: His name, appearance, and the fact he wears glasses are all likely inspired by the Marvel co-creator Stan Lee, only without his vocal mannerisms or mustache.
A Horomone Monstress seen in the season 2 finale.
- Everyone Loves Blondes: She's blonde, attractive and Maury seems to be quite infatuated with her. Overlaps with Dumb Blonde.
- The Hyena: Laughs at just about everything, as Maury points out at one point.
- Voiced by: Cole Escola
Maury and Connie's love child.
- Ambiguous Gender Identity: Montel's voice and moustache hint that they're biologically male, but Maury and Connie don't want to impose any masculine roles on them and it's still too early to say if they'll ever identify as male, female or anything else.
- Camp: Montel has a very flamboyant tone of voice akin to Mr Slave.
- Pubescent Braces: Gains these in "The Parents Aren't Alright".
- Rapid Aging: In the first appearance they're a newborn, but by the end of the season they're visibly closer to puberty.
- Strong Family Resemblance: They have Maury's nose and head shape, with Connie's fur and eye color.
- Wrong Genetic Sex: Defied. Maury points out that Hormone Monsters treat their offspring as genderless until a certain stage in their lives. That being said, Montel does seem to be biologically male.
Love Bugs & Hate Worms
Walter Las Palmas
- Voiced by: Brandon Kyle Goodman
- Ascended Extra: One of the main characters of Human Resources (2022).
- Big Bad Ensemble: Shares the role of main antagonist with Rochelle for season 5, given that they are both Hate Worms.
- Camp Gay: He is flamboyant and gossipy with a fixation on love that's extreme even for his species. While he gets quite involved in his clients' relationships, and monsters seem to be bisexual by nature, the only off-the-clock romance he has is with a male monster, Simon Sex.
- Deconstructed Character Archetype: Wide-Eyed Idealist. As a Love Bug, he is very easily excitable about love. When Jessi humiliates Nick, he is so emotional about it that he becomes a Hate Worm and gains a nasty personality. However, he manages to become an idealist again in the season 5 finale as well as a Love Bug again.
- Heel–Face Revolving Door: As shown in Human Resources (2022) he can go from love bug to hate worm and back in the span of hours. As he says, there's a thin line between love and hate.
- Foil: To Sonya in terms of how to handle Love. Walter encourages Nick to be as direct as possible when showing romance while Sonya seems to understand that romance takes a little patience.
- Four Eyes, Zero Soul: He retains his glasses when turning into a Hate Worm, and is generally the most disturbed of the Hate Worms despite his good intentions.
- Jerkass Has a Point: He calls out Nick's Never My Fault moment in the season finale when he blames Walter for everything bad happening, which is the only right thing he has done.
- Love Freak: Even for a Love Bug, he is obsessed with love. He believes that everything done for the sake of love is healthy, even if it hurts other people. For example, he wants his client Yara, who suffers from Alzheimer's, to stay in her memories instead of reality because she feels more love in her mind.
- Love Makes You Crazy: He's obsessed with love to an disturbing extent, lashing out at anybody who thwarts his idea of what love should be, and sings a song to Emmy in Human Resources all about how love is inherently "psycho."
- Power Of Hate: Nick's newfound hatred of Jessi transforms Walter from a Love Bug into a Hate Worm.
- Protagonist Journey to Villain: He was a Nice Guy Love Bug for three episodes, but becomes a Hate Worm after Nick deals with fatal blows to his crush on Jessi. Since the, he's been encouraging Nick to be as hateful as possible. He manages to go back to normal in the season 5 finale.
- Wide-Eyed Idealist: Basically his prime character trait, which gets deconstructed. He believes that his clients will always find true love, but as a result, he gets very angry if somebody gets in his way.
- Voiced by: Pamela Adlon
- The Alcoholic: In Human Resources, after getting fired, she spends most of her nights getting blackout drunk.
- Broken Ace: She's one of the top Lovebugs at Human Resources (and definitely the most competent in Season 5 of Big Mouth), but in the Human Resources spinoff, she realizes that she doesn't take enough time for herself as a result. Her impulsive decision to pursue a forbidden romance with a human leads to her getting fired.
- Establishing Character Moment: Listening to Walter rave about a romantic gesture he just witnessed with clear disinterest and when he asks her how great it is to be a love bug gives the apathetic response "Eh, it's a living". This shows she's a lot less invested than Walter and treats being a love bug like a regular job, but her professional, level headed approach ended up being much more helpful to Jessie than Walter's over zealousness was for Nick.
- Foil: To Walter in terms of how to handle Love. Walter encourages Nick to be as direct as possible when showing romance while Sonya seems to understand that romance takes a little patience.
- To the Shame Wizard, Tito the Anxiety Mosquito and Depression Kitty. They were all at odds with Connie and she'd frequently go out of her way to get Jessi to stop listening to them, when Sonya became one of Jessi's monsters she greeted her as an old friend.
- Voiced by: Keke Palmer
- Ascended Extra: One of the main characters of Human Resources (2022)
- Big Bad Ensemble: Shares the role of main antagonist with Walter for season 5, given that they are both Hate Worms.
- The Corrupter: She intentionally corrupts Missy into becoming for rude and hateful.
- Eviler than Thou: Proves to be this to the Shame Wizard after casting him out when he tried to shame Missy.
- Fatal Flaw: Selfishness and refusal to admit fault. In Human Resources Rochelle repeatedly goes behind peoples backs to get what she wants, whether it is in her personal or professional life. She then claims that loves justifies her actions when people point out the mess she created. This comes to a head when she begins to secretly date Dante behind Emmy's back, and her subsequent refusal to admit her selfishness almost destroys their deep friendship.
- Heel–Face Turn: Is transformed back into a love bug after Missy comes to forgive Jessi.
- Power of Love: Missy's compassion and kindness transforms Rochelle from a Hate Worm into a Love Bug.
- Sassy Black Woman: Despite being an aracial Lovebug, she speaks with a bit of an accent and likes to make sassy comments towards her coworkers. Justified since she's voiced by a Black actress.
- Took a Level in Kindness: Introduced as a Hate Worm, she becomes a much nicer (albeit still flawed) creature after Missy transforms her back into a Lovebug, which is showcased in Human Resources.
- Toxic Friend Influence: Her hateful influence causes Missy to engage in bad behavior, like slandering Jessi and Ali on the internet, getting into fights, and lashing out at her parents.
- Butt-Monkey: He's always getting hurt in some way due to his fragility and being assigned to Marty.
- Dead Sparks: Stu always appearing on the verge of death is a visual representation of these in Marty and Barbara's marriage.
- I Was Quite a Looker: In Barbara's flashbacks, he used to be quite handsome. Marty's decaying marriage and abrasive personality clearly took its toll.
Lionel The Shame Wizard
And to shine a naked light
On all the horrid things you do
And fill you with SHAME!
Debuting in Season 2, the Shame Wizard makes teens feel guilty. Is effectively Severus Snape in appearance and mannerism.
- Anti-Villain: By the end of season 2, Andrew admits that shame is a part of life all need to deal with and may teach them to be better people, which is the Wizard's goal. Once the Shame Wizard drops his more villainous traits, he is able to work together with Andrew.
- Arc Villain: He's the driving negative force of Season 2, and all characters start to have to deal with them as their actions call him forth.
- Arch-Enemy: He serves as this to Andrew for Season 2. While he enjoy shaming all the kids in, Andrew is the first one that the Shame Wizard shames while Andrew is the one whose afraid of the Shame Wizard the most. Ironically Andrew is one of the first people to befriend The Shame Wizard when he sees his more sympathetic side.
- Arson, Murder, and Jaywalking: On top of shaming all the kids over things they shouldn't be ashamed of and savouring the rifts between friends and couples, he also grows to a massive size and blocks the lunar eclipse they were all planning to watch.
- Ascended Extra: One of the main characters of the spin-off Human Resources (2022)
- Big Bad Wannabe: While The Shame Wizard still lingers around inflicting shame on kids after his debut season, he doesn't really reach the menace he had previously as the kids are better prepared on how to handle him and shame
- Breaking the Fourth Wall: He talks directly to the audience over the "to be continued" screen at the end of "Dark Side of the Boob".
- Brutal Honesty: While he's very harsh about it, he's not entirely wrong about some of the immoral behavior that he shames and reprimands the kids for, such as Jessi's rebellious streak that got her father in trouble and for Nick bragging about touching Gina's boob just so he could feel like grown up. He even considers himself as like a "harsh, judgmental friend".
- Casting a Shadow: The Shame Wizard is able to teleport and manifest himself by using shadows in a given room.
- Catchphrase: "Shaaame..."
- Collector of the Strange: His hobby is collecting vintage Nazi dildos.
- Color Motif: While he doesn't wear green, he's connected to the color. Many of his appearances, especially when he is at his most threatening, have the whole show tinted in a green shade. Even the trial he puts Andrew through is in an entirely green court.
- Dark Is Evil: Wears dark robes, has shadow-based abilities, and is the Big Bad. Subverted as he turns out to be more of an Anti-Villain then outright evil.
- Dastardly Whiplash: Has a pencil-thin moustache, large hooked nose, hunched posture and dark robes.
- Depraved Bisexual: He's a villain who tries to exploit the shame of children, and when Maury calls him out on this in Season 5, they end up making out. His relationship with Coach Steve is also ambiguously romantic. His attraction towards women tends to veer into disturbing territory, be it unrequited attraction towards a coworker he fat-shames, getting involved in a sick murderous cuckoldry, or even being attracted to his own mother. This is apparently normal for Shame Wizards, at least according to his mother.
- Disc-One Final Boss: Despite being the Arc Villain for most of Season 2, he gets defeated in the penultimate episode allowing Kitty to take over as the Final Boss.
- Demoted to Extra: He goes from the Arc Villain for Season 2 to only appearing in one cameo per season in Season 3 and Season 4. He has more appearances in season 5 though.
- The Dreaded: His first appearance makes Maury cower in fear.
- Even Evil Has Standards:
Maddie: I'm the only doll that doesn't come with a birthday!
- He's a bit disturbed by the racist treatment of Missy's American Girl doll, Maddie, by the company that made her.
Shame Wizard: What this company has done to you is not right.
- Also, despite reveling in the shame of his clients, even he's appalled by Kitty's stated intentions to have Becca "drown" in her depression.
- In Human Resources he was overjoyed to make Becca ashamed of being an unloving mother, but even he was appalled at how bad a job Emmy was doing at helping Becca love her newborn. When Becca just comments on how ugly the newborn is, Lionel is among the people yelling at her for not even trying. From the frown on his face, he isn't even indulging in her shame; he's just upset with her like everyone else.
- Evil Brit: He has a British accent and thrives off the insecurities of children.
- Evil Laugh: On occasion, he releases a pretty masterful one.
- Exotic Equipment: In Season 5, Maury gets a picture of his dick, which is curved and has a head resembling a wailing spirit. Downplayed, since it at least still resembles a human penis.
- Expy: Appears to be based on Severus Snape.
- To the Hormone Monsters. While the Hormone Monsters represent the teenage Id, the Shame Wizard represents the teenage Superego.
- Coach Steve is this to him, with Steve's utter lack of shame confounding the Shame Wizard.
- Forehead of Doom: He's got a weird eggplant-shaped head with a large amount of space between his hairline and eyebrows.
- Freudian Excuse: He says his obsession with order comes from having to deal with his mother's impossible standards.
- Friendly Enemy: Despite being the antithesis to the hormone monsters, he's able to converse with them on a casual basis.
- The Friend Nobody Likes: As shown in the finale of Season 2 and then Human Resources (2022), he is an outcast in the workplace and nobody likes or enjoys his company due to him constantly judging others and making them feel bad. Rochelle even states that nobody likes the Shame Wizard and he's even shown to have nobody to sit with at the cafeteria aside from Emmy (who also became an outcast after humiliating herself at the International Creature Convention). Despite that, he is still capable of being cordial with his coworkers and working with them.
- Go-Karting with Bowser: In Season 5, although he still tries to induce shame into their kids, the Shame Wizard is actually on a lot better terms with Maury and Connie, to the point where they accept his presence at their Christmas Party, even if he does leave because of how sad it is.
- In fact, The Shame Wizard and Maury even make out at some point and it's clear that they have no real malice towards each other anymore.
- Hidden Depths: Likes Nazi dildos and did a cover of A Ha's "Take on Me".
- Humanoid Abomination: Not only does his appearance look slightly abnormal (elf ears and sharp teeth), but he can manifest through shadows and create countless doppelgangers of himself.
- Ink-Suit Actor: His facial structure, especially his nose, resembles that of his voice actor, David Thewlis. Tyler lampshades this when he makes a comment about "the floating guy with the Harry Potter accent".
- Insane Troll Logic: Much how shame actually works, the Shame Wizard finds ways for people to feel guilty about things they shouldn't or that don't even have any way to be blamed for, which includes making Jessi feel like she was the cause for Trump's election as she was not sufficiently aggressive as a Hillary supporter.
- Knight of Cerebus: The show never had an antagonist or an Arc Villain prior to him coming along, and it shows that the second season, in part thanks to his antics, is much darker.
- Manipulative Bastard: As the embodiment of shame, he whispers in everyone's ears and makes everyone act against each other's, and their own, best interests.
- Mommy Issues: He has a tense, troubled relationship with his famous mother Rita. This is further explored in Human Resources, which reveals he's also attracted to her.
- Necessarily Evil: Sees himself as this, and is later agreed to be this. Yes, shame might be a bad feeling to have, but feeling shame will teach you to not do something again and without it, as he mentions in his song, humanity could revert to a depraved state of hedonism, which actually happens in the sleepover.
- Not Afraid of You Anymore: By the penultimate episode of Season 2, all the kids stand up to him loosing their fear of him in the process. Case in point when Andrew the person most afraid of the Shame Wizard is merely annoyed by the Shame Wizard in his subsequent appearances.
- Not-So-Harmless Villain: Season 5 proved that the Shame Wizard can still be a threat to the children where his body shaming causes many to mutilate their bodies.
- Odd Friendship: In Human Resources the only other creature he interacts with more than the Hormone Monsters is Emmy, a junior Lovebug who despite her purpose being meant to inspire love and warmth in humans, has a reputation for being an inexperienced screw-up who isn't the best at helping people connect emotionally. Although he happily indulges in her shame, he does bother to keep her around for company, even helping her get clean from an Addiction Angel she was seeing and invites her to sit with him at lunch. Likewise, Lionel is on the same team with her for their client Becca Li, and he's the only one Emmy really has built up a relationship with. While she's clearly not proud of this, she does seem to be okay with the company he gives her when her other friends Rochelle, Walter or Pete aren't around.
- Parental Abandonment: His father abandoned him, leading to severe issues in his adult life.
- Pet the Dog:
- He develops a friendship with Coach Steve, and keeps the drawing he made framed in his office.
- During his trial of Andrew, he allows a witness, who is a sock to smoke on the stand out of sympathy for what it went through with Andrew.
- He also appears to have some sympathy for Jessi's father, though he uses it to make Jessi feel guilty about shoplifting.
- In Human Resources, he goes out of his way to help Emmy with her addiction to the Addiction Angel and even accompanies her at the office cafeteria when she's being ostracized after vomiting on her coworkers at the International Creature Convention, despite having no reason to other than to simply be oddly kind (and, admittedly, indulge a bit in her shame).
- Politically Incorrect Villain: He makes Matthew feel insecure about his sexuality by using petty gay slurs, though it's not clear if he's genuinely bigoted or just saying these things to push Matthew's buttons.
- Punch-Clock Villain: Yes, he exists to spread shame and guilt, but as pointed out in Anti-Villain above, shame is a part of life that everyone deals with and can help teach people how to be better. When he isn't doing his job, he's actually on pretty friendly terms with the hormone monsters.
- Sure, Let's Go with That: In his sole appearance in season 3, he Spots Andrew at a MGTOW gathering and tries to shame him upon seeing his realization that they're not good people, but it's clear he was really there to buy Nazi dildos.
- Tragic Villain: Actually, he is this. Despite him seeming harsh and unforgivable, he actually has a sweeter and nicer side. His worst traits come from a sad childhood, when his dad abandoned him and his mother made him feel weird about himself for something she asked him to do. He has a hard job, that is making people feel ashamed or guilty to make them be better and avoid catastrophic consequences of people without shame. He is also hushed by his co-workers, who fear his worst traits, which makes him feel sad and alone.
- Villain Decay: He went from being the Big Bad feared by all for much of season 2 to being merely considered an annoying nuisance in season 2's finale and the beginning of season 3. He gets his mojo back in season 5.
- Villain Has a Point: Although he takes things too far, he's right that an unrepentant human race devoid of guilt would not be a good thing. A recurring conflict on both the small and large scale is the kids listening to their base impulses. At the end of Season 5, he makes Jessi feel an appropriate amount of shame for how rudely she treated Missy, which gets Jessi to apologize.
- Villain Song: He gets a show-stopper in "Dark Side of the Boob". He gets another song in the season 5 episode "The Rise of Shane Lizard," celebrating body insecurities.
- Villainy-Free Villain: Despite being a major antagonist, he never actually does anything horrific. All the bad stuff that happens to the kids is usually through either their own or each other's bad choices. The Shame Wizard just gloats in their faces.
- "Well Done, Son" Guy: Human Resources reveals that his mother is a famous Shame Wizard herself, and he constantly craves her approval (or at least her shame) despite her emotional distance. He even packages Becca's shameful tears just so he can show them off to his mom — not that she's impressed.
Kitty Beaumont Bouchet
A creature from the depression department. She has been an outside consultant in Jessi's case, and tries to take over Jessi's guidance when she and Connie have a fallout.
- Allegorical Character: Of depression. She isolates Jessi from her friends and family and tries to keep her in a constant state of lazy indisposition. Even when she is defeated, Jessi still admits she needs to see a therapist.
- Animals Lack Attributes: Averted. She has a prominent anus, much to Connie's disgust (and Rita's delight).
- Arch-Enemy: To Jessi. So far Kitty hasn't interacted with the other kids and seems only interested in depressing Jessi, while Jessi doesn't want Kitty to control her life.
- Arc Villain: The main antagonist of Jessie's character arc, representing her depression.
- Big Bad Duumvirate: Works together with Tito in Season 4 in her efforts to plague Jessi with negative emotion.
- Bitch in Sheep's Clothing: She shows up as disarming and even somewhat pleasant and friendly, but once that Jessi is under her thumb, she shows herself controlling and very antagonistic.
- The Bus Came Back: She appears in a later episode of season 3, when Jessi feels overwhelmed by the pressure of national exams and her mother. When her father gives her some support and talks with her mother, she leaves again.
- Cats Are Mean: Doesn't get any meaner than basically trying to drive someone to suicide.
- Depraved Homosexual: Human Resources reveals that she's been having sex with Rita the Shame Wizard for centuries, and they get off on other people's misery.
- A Dog Named "Dog": Depression Kitty is her species, but she's actually named Kitty.
- Evil Duo: She often teams up with Tito to torture people, a reference to how depression and anxiety are often comorbid.
- Faux Affably Evil: She wants to keep Jessi broken and weak, but does conventionally affectionate things like snuggling and speaking in a tender voice.
- Final Boss: She is the last threat faced in Season 2, well after the Shame Wizard had become weaker and sympathetic.
- To the Shame Wizard, who was the Arc Villain for most of Season 2, Kitty was introduced right at the end and serves as a sort of Final Boss for the same season. Whereas the Wizard starts as a fully evil and antagonistic being, he ends as a sort of Anti-Villain that not only has a sympathetic backstory and understandable motives but is ultimately able to befriend both Andrew and Maurice, Kitty is much more apparently nice and pleasant, her suggestions to Jessi make her feel instantly comfortable, but she is much more devious, wanting Jessi to lose connection to her friends, family and goals and instate depression on her, and all the kids and monsters run away from her, as Jessi seeks help in therapy to get rid of her fully.
- In Human Resources, she is contrasted against Cat Stevens, the second Depression Kitty to be introduced. While Kitty doesn't care about her clients and just takes delight in their depression while isolating them from others, Cat has his client's best interests in heart and understands that, while they may suffer from depression, they shouldn't give up on their loved ones.
- Knight of Cerebus: Like the Shame Wizard, every one of her appearances makes the show darker.
- Platonic Life-Partners: She and Tito have worked together for centuries and are very close.
- Secondary Color Nemesis: Has purple fur.
- Shout-Out: Bears a striking resemblance to the Cheshire Cat from Alice in Wonderland, specifically it's Disney's incarnation, down to a similar color palette and fur pattern. As well as the way she first approaches Jessi: suddenly appearing behind her.
- Soft-Spoken Sadist: Kitty speaks with a soft soothing voice which barely hides her malicious intents for Jessie
- Villainous Friendship: In Season 4, she and Tito The Anxiety Mosquito are quite chummy and close, even taking pleasure in working together to emotionally cripple Jessi. Which makes sense given the connection between Depression and Anxiety.
A collection of fantasy beings who are focused on Jessi's development.
- Allegorical Character: As stated above, they represent the various facets of human beings.
- The Big Guy: DNApe, not just because he's a gorilla, but because he's also the most hot-headed.
- The Heart: Anxiety Armadillo manages Jessi's emotions.
- Early-Installment Weirdness: Anxiety Armadillos were replaced with Anxiety Mosquitos later on in the series.
- The Lancer: Connie apparently fills this role, working with Jessi's hormonal development over her mental development.
- The Leader: Intellect Sphinx is apparently the head of the board meeting concerning Jessi.
- Large Ham: DNApe doesn't take kindly knowing that Jessi's pedigree is being wasted on impulsive decisions that could hurt her in the long-term.
- The Smart Guy: Ambition Gremlin thinks about the big picture.
- Unwitting Instigator of Doom: Intellect Sphinx's decision to have the Depression Kitty take over as Jessi's new primary creature nearly leads to Jessi getting trapped in the Human Resources realm forever.
- The Voiceless: Anxiety Armadillo doesn't talk.
The embodiment of menopause. She appears to haunt Barbara and warn her that her menopause is coming.
- Ambiguously Evil: She torments Andrew's mother, but at the same time tells her she can now have unprotected sex without consequence, and that this chapter of her life is hers to live. Then she tells her that Andrew is lusting after his cousin. Barbara can also summon her powers when they are trying to run away from Florida. It's hinted that, much like many other supernatural beings, she's neither good nor bad, just another part of life.
- Make Me Wanna Shout: Like most banshees, she seems to have powers of making powerful screams. Barbara can use it to part a huge wave.
- My Biological Clock Is Ticking: Appears before Andrew's mother to signify her transition into her Autumn years.
- Our Banshees Are Louder: Has a crone's laugh.
- Rhymes on a Dime: Speaks in rhymes.
- Scary Teeth: Her dentures are all elongated canines.
Tito Taylor Thomas the Anxiety Mosquito
The personification of anxiety.
- Allegorical Character: Of anxiety. She tells the main group about their insecurities of the world, whether they're rational or not, and induce nervousness, and for Nick, panic attacks. She also has a long history of working with the Depression Kitty, as depression and anxiety are often linked together.
- Alliterative Name: Her full name is "Tito Taylor Thomas".
- Ambiguous Gender: While her voice actress is a woman and she speaks in a higher-pitched, more feminine voice, Tito lacks any real secondary sexual characteristics to indicate her gender. Further, neither her first name (typically masculine) and her middle name (gender neutral) are particularly feminine enough to pin down her gender based on name alone.
- Ambiguously Evil: She overwhelms the kids with unpleasant and terrifying thoughts that prevent them from functioning properly and makes them increasingly on edge, but she tends to say that he does this so they can protect themselves. Although the methods are far from ideal, she doesn't seem to have malicious thoughts aside from being extremely overbearing and feeding upon their insecurities.
- Arc Villain: She serves as this for Season 4, where he plagues everyone with anxiety throughout the season.
- Even Evil Has Standards: In Human Resources, Tito is just as taken aback as Becca's other team members by Kitty's intense desire to have her "drown" in misery and despair.
- Gender-Blender Name: "Tito" is a stereotypically masculine name.
- Nervous Wreck: Due to being the personification of anxiety, she is constantly stressed out and can induce this upon the kids she's around, even biting them to induce more anxious thoughts, and even sends Nick into a few panic attacks throughout Season 4.
- Platonic Life-Partners: With Kitty, given the close association between depression and anxiety.
- Second Episode Substitute: Seemingly replaced the "Anxiety Armadillos" from season 2.
- Self-Duplication: She can duplicate into a whole swarm of herself, as a representation of many anxious thoughts piling up on one another.
- Arch-Enemy: For Tito given their respective roles of being the Big Good and Big Bad for Season 4, along with the Graditoad constantly trying to eat Tito.
- Big Good: He serves as one for Season 4 as he gives the kids courage to fend off anxiety.
- I Am Not Weasel: Jessi mistook him for a frog when he's actually a toad.
- Nice Guy: He ultimately helps Jessi feel better about her life, and shrinks both Depression Kitty and Tito.
- The Pollyanna: Puts a positive spin on nearly everything. For example, among the things he's grateful for is that the threat of his predators pushes him to jump higher, because all that exercise is good for toning his butt.
- Positive Friend Influence: His presence allows the kids to feel good about themselves.
- Rhymes on a Dime: He does some rhyming mantras to help Jessi practice her gratitude.
- The Dreaded: Connie seems to be afraid of it, nervously denying that she brought it up when Jessie asks her about it
- The Ghost: Connie mentions that the Self-Harm Walrus exists in "A Very Special 9/11 Episode", but we never actually see it.
- Entities implied to be Self-Harm Walruses show up as background characters in Human Resources - they're Nightmare Fuel if you're unfortunate enough to pause when they're on-screen.
- Wily Walrus: Implied to be the case - it is presumably meant to be the personification of self-harm, and Connie at least sees it as The Dreaded.