The End Of Puberty: 7 Shocking Revelations And Controversial Endings In Big Mouth's Final Season

The curtain has finally closed on one of Netflix’s most polarizing and longest-running animated series. The eighth and final season of Big Mouth premiered on May 23, 2024, bringing the seven-year journey of the Bridgeton Middle School teens to a definitive, and for some, controversial, conclusion. The show, co-created by Nick Kroll, Andrew Goldberg, Mark Levin, and Jennifer Flackett, cemented its legacy by fearlessly tackling the awkward, messy, and often explicit realities of puberty and adolescence, using its signature blend of raunchy humor and surprising emotional depth. This final run saw the beloved characters navigate the new, terrifying world of high school, complete with new challenges like driving, drug use, and even more complex sexual and emotional awakenings.

As of late December 2025, the conversation around the finale remains vibrant, with fans dissecting every major character arc and the ultimate fate of the Hormone Monsters. The end of Big Mouth not only marks the close of an era for Netflix's adult animation but also paves the way for the creators' next project, ensuring the unique, boundary-pushing humor will live on. From the full cast list to the shocking final plot twists and the future of the creative team, here is the ultimate deep-dive into the legacy of Big Mouth.

The Creative Minds and Unforgettable Voice Cast: A Full Profile

The success of Big Mouth is deeply rooted in the talent of its creators and the versatility of its core voice cast. The show’s premise is semi-autobiographical, largely inspired by the childhood experiences of co-creators Nick Kroll and Andrew Goldberg. They, along with Mark Levin and Jennifer Flackett, crafted a universe where the abstract horrors of growing up—shame, lust, depression—are personified by hilarious, foul-mouthed creatures.

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The show is also unique in that many of the main voice actors play multiple, distinct roles, showcasing incredible range. Below is a comprehensive profile of the primary cast and the iconic characters they bring to life, forming the backbone of the show’s topical authority:

• Nick Kroll: (Co-Creator, Executive Producer) Voices the main protagonist, Nick Birch, as well as the fan-favorite Maury the Hormone Monster, the perpetually confused Coach Steve, the erratic Rick the Hormone Monster, and the abrasive Lola Skumpy.
• John Mulaney: Voices Andrew Glouberman, Nick’s best friend whose anxiety and sexual urges are often at the forefront of the narrative.
• Jessi Klein: Voices Jessi Glaser, a character whose journey through her parents' divorce and explorations of her own sexuality provides some of the show's most emotionally grounded moments.
• Ayo Edebiri: Voices Missy Foreman-Greenwald. Edebiri took over the role from Jenny Slate in 2020, a change made to have a Black actress voice the biracial character, becoming a significant moment in the show's history and receiving critical praise for her performance.
• Jason Mantzoukas: Voices Jay Bilzerian, the chaotic, pansexual teen whose storyline often involves excessive masturbation and his complicated family life.
• Fred Armisen: Voices Elliot Birch, Nick's well-meaning but oblivious father, and the soulful Ghost of Duke Ellington.
• Maya Rudolph: Voices the iconic Connie the Hormone Monstress, whose booming, sensual voice has earned Rudolph multiple Emmy Awards. She also voices Nick's mother, Diane Birch.
• Jordan Peele: Voices the perpetually anxious Ghosal, a Shame Wizard apprentice, among other characters.

The Longest Run: Big Mouth's Emmy Legacy and Cultural Impact

Before its finale, Big Mouth secured its place in television history as Netflix's longest-running scripted U.S. series, a testament to its enduring popularity despite the constant stream of controversy. The show’s willingness to use graphic, shock-value humor to discuss subjects like menstruation, masturbation, sexual orientation, and mental health made it a cultural lightning rod. While critics often praised its honesty and emotional intelligence, some viewers found its explicit nature unsettling or inappropriate, particularly given the age of the main characters.

However, the show’s creative risk-taking was consistently recognized by the industry, leading to a significant Emmy Awards legacy. The series has garnered numerous nominations and wins, particularly for its voice acting and animated excellence. A key highlight is Maya Rudolph's dominant run, having won the Outstanding Character Voice-Over Performance Emmy multiple times for her role as Connie the Hormone Monstress. This recognition underscores the show's masterful use of personified emotions—like the Shame Wizard (voiced by David Thewlis), Kitty the Anxiety Mosquito, and Tito the Anxiety Mosquito (voiced by Maria Bamford)—to explore complex psychological states in an accessible, comedic way.

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The show's spin-off, Human Resources, which focused entirely on the lives of the emotional and hormone creatures like Maury, Connie, and the Lovebugs, also concluded its run, solidifying the end of this particular animated universe. The two shows together created a comprehensive, interconnected world—a "Pubertyverse"—that redefined the adult animated comedy landscape.

7 Shocking Plot Points and Character Endings from Season 8

The eighth and final season was designed to give the core group of friends—Nick, Andrew, Jessi, Missy, and Jay—a proper send-off as they transitioned from the awkwardness of Bridgeton Middle School to the slightly more mature challenges of high school. The final ten half-hour episodes were packed with the show's signature gross-out humor but were ultimately focused on emotional resolution. Here are the most significant plot points and character revelations from the final season:

1. Nick Birch's Self-Acceptance: Nick's arc in the final season centered on him finally accepting his own flaws and insecurities, moving past his constant need for external validation. The final moments see him looking forward, suggesting a more mature approach to his high school years.
2. The End of the Hormone Monster Dynamic: The season saw a poignant shift in the relationship between the teens and their Hormone Monsters. In a particularly moving scene, Jessi Glaser tells her assigned monsters, Kitty the Anxiety Mosquito and Tito the Depression Kitty, that she needs a break, symbolizing her newfound ability to manage her mental health without their constant, chaotic interference.
3. Missy Foreman-Greenwald’s Confidence: Missy's journey from a shy, self-conscious girl to a confident, self-assured young woman was a core theme. Her final arc involved her embracing her authentic self and confronting how her newfound uninhibited nature could sometimes inadvertently hurt others.
4. The Controversial Andrew/Missy Arc: One of the most talked-about elements of the finale was the resolution of the Andrew-Missy relationship. Andrew's long-standing crush on Missy came to a head, and some fans found the outcome controversial, particularly the feeling that Missy had "used" Andrew to get closer to another crush before ultimately friend-zoning him.
5. Jay Bilzerian's Family and Future: Jay's chaotic home life with his parents and siblings remained a source of both comedy and heartache. The final season provided him with a sense of direction, focusing on his acceptance of his bisexuality and his complex relationship with his girlfriend, Lola Skumpy, moving toward a more stable, though still bizarre, future.
6. The High School Transition: The final episodes explicitly show the characters navigating their first high school experiences, a major shift from the familiar setting of Bridgeton Middle School. This transition introduced new, older influences and themes, such as experimenting with drugs and the pressure of driving.
7. The Lingering Presence of Puberty: While the teens "graduated" from puberty, the show made it clear that the struggles of adolescence don't simply vanish. The final moments suggest that while the Hormone Monsters might take a backseat, the emotional creatures and the complexities of growing up will always be a part of their lives, just in a different form.

Beyond Bridgeton: Nick Kroll's New Adult Animated Series 'Mating Season'

Fans mourning the loss of the Big Mouth universe have a new project to look forward to from the creative team. Co-creators Nick Kroll and Andrew Goldberg are set to launch a new adult animated series on Netflix called Mating Season. This announcement is the freshest news from the creative team and signals a continuation of their unique comedic voice.

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Scheduled to premiere in 2026, Mating Season is described as a rom-com about animals navigating relationships and hook-ups in the wild. While it is not a direct spin-off of Big Mouth or Human Resources, it shares the same creative DNA: a frank, comedic, and often raunchy exploration of sex, love, and relationships, but this time through the lens of the animal kingdom. The show will explore themes of attraction, commitment, and the biological imperatives of different species, offering a fresh, metaphorical take on human dating and mating rituals. This new series confirms that while the story of Nick and Andrew has ended, the creators' commitment to pushing the boundaries of adult animated comedy is only just beginning.