Leah Birch is a fictional character portrayed by Kat Dennings in the TV series Big Mouth.
In the first episode they appeared in, titled Am I Gay? (season 1), they were 31 years old.
They appear in 14 episodes out of a total of 71 aired so far and have accumulated 6283 positive votes.
Leah Birch is also portrayed by Chloe Fineman.
Episodes14
Am I Gay?
episode S1.E3 september 2017A trailer for a new movie starring The Rock leaves Andrew questioning his sexuality. Jessi and Nick's budding romance turns ugly fast.
Girls Are Horny Too
episode S1.E5 september 2017A steamy novel making the rounds at school inspires Jessi to explore her own sexuality -- and leaves the boys totally confused about what girls want.
The Head Push
episode S1.E8 september 2017When Leah hosts a party for the high school drama crowd, Nick wrestles with a romantic dilemma, and Andrew and Missy witness a disturbing scene.
I Survived Jessi's Bat Mitzvah
episode S1.E9 september 2017Family blowups, secret liaisons and an unflattering dress make Jessi's bat mitzvah a night to remember.
What Is It About Boobs?
episode S2.E2 october 2018A classmate's booming bosom sends the boys into a rapture - and leaves the girls with a raging sense of insecurity. Coach Steve drops a bombshell.
The Shame Wizard
episode S2.E3 october 2018As Nick tries to figure out whether he has a shot with Gina, a mortifying encounter with Leah sends Andrew into a spiral of shame.
The Planned Parenthood Show
episode S2.E5 october 2018An argument in sex ed class turns into a skit-tastic journey through the worlds of Planned Parenthood, contraceptives and STDs.
The Department of Puberty
episode S2.E10 october 2018After traveling through a magic portal to puberty headquarters, Nick seeks out a new Hormone Monster and Jessi bonds with the Depression Kitty.
My Furry Valentine
episode S3.E1 february 2019Sappy cards. Stupid clichés. And so much pressure. For Andrew, Nick, Jessi and friends, Valentine's Day is a total freaking minefield.
Girls Are Angry Too
episode S3.E2 october 2019When a shop class mishap inspires a sexist dress code, Jessi rebels, Missy struggles to keep her alter ego in check, and Andrew gets a wake-up call.
Cellsea
episode S3.E3 october 2019Nick is bewitched by his cool new phone. A call from "Pharmacy Boy" turns Matthew into a nervous wreck. Jay finds a Netflix show made just for him.
How To Have An Orgasm
episode S3.E6 october 2019Connie gives Jessi a crash course in female pleasure, Maury tries to talk Andrew into sending a dick pic, and Nick lashes out at his new housemate.
Rankings
episode S3.E8 october 2019As the friends feverishly swap lists of the hottest kids at school, newcomer Ali stokes the flames by announcing she's pansexual.
The New Me
episode S4.E1 december 2020At sleep-away camp, Jessi befriends her trans cabinmate, and Nick discovers his two best friends have a little too much in common.
- Am I Gay?
- Girls Are Horny Too
- The Head Push
- I Survived Jessi's Bat Mitzvah
- What Is It About Boobs?
- The Shame Wizard
- The Planned Parenthood Show
- The Department of Puberty
- My Furry Valentine
- Girls Are Angry Too
- Cellsea
- How To Have An Orgasm
- Rankings
- The New Me
Best moments10
- When Leah hosts a party for the high school drama crowd, Nick wrestles with a romantic dilemma, and Andrew and Missy witness a disturbing scene.
- A steamy novel making the rounds at school inspires Jessi to explore her own sexuality -- and leaves the boys totally confused about what girls want.
- As Nick tries to figure out whether he has a shot with Gina, a mortifying encounter with Leah sends Andrew into a spiral of shame.
- An argument in sex ed class turns into a skit-tastic journey through the worlds of Planned Parenthood, contraceptives and STDs.
- A trailer for a new movie starring The Rock leaves Andrew questioning his sexuality. Jessi and Nick's budding romance turns ugly fast.
- Family blowups, secret liaisons and an unflattering dress make Jessi's bat mitzvah a night to remember.
- A classmate's booming bosom sends the boys into a rapture - and leaves the girls with a raging sense of insecurity. Coach Steve drops a bombshell.
- After traveling through a magic portal to puberty headquarters, Nick seeks out a new Hormone Monster and Jessi bonds with the Depression Kitty.
- Sappy cards. Stupid clichés. And so much pressure. For Andrew, Nick, Jessi and friends, Valentine's Day is a total freaking minefield.
- When a shop class mishap inspires a sexist dress code, Jessi rebels, Missy struggles to keep her alter ego in check, and Andrew gets a wake-up call.
- The Head Push
- Girls Are Horny Too
- The Shame Wizard
- The Planned Parenthood Show
- Am I Gay?
- I Survived Jessi's Bat Mitzvah
- What Is It About Boobs?
- The Department of Puberty
- My Furry Valentine
- Girls Are Angry Too