Cellsea

Nick Kroll

Nick Birch / Maury the Hormone Monster / Coach Steve (voice)

John Mulaney

Andrew Glouberman (voice)

Jessi Klein

Jessi Glaser (voice)

Jenny Slate

Missy Foreman-Greenwald (voice)

Jason Mantzoukas

Jay Bilzerian (voice)

Maya Rudolph

Diane Birch / Constance the Hormone Monstress (voice)

Fred Armisen

Elliot Birch (voice)

Jordan Peele

Ghost of Duke Ellington (voice)

Andrew Rannells

Matthew (voice)

Jessica Chaffin

Shannon Glaser (voice)

Emily Altman

(voice)

Gary Cole

Andrew's Father (voice)

Mark Rivers

Ghost of David Bowie (voice)

Martin Short

Gordie (voice)

Chelsea Peretti

Cellsea (voice)

Julie White

Kimberly (voice)

Seth Morris

(voice)

Chris Redd

(voice)

Heather Lawless

Jenna Bilzerian (voice)

Jon Daly

Judd Birch (voice)

Kat Dennings

Leah Birch (voice)

Zachary Quinto

Aiden (voice)

Neil Casey

Lars (voice)

Richard Kind

Marty Glouberman (voice)