Clarence

Skyler Page

Clarence

Spencer Rothbell

Jeff Randell (voice)

Sean Giambrone

Sumo

Tom Kenny

Sumo

Jason Marsden

Chad

Eric Edelstein

Belson/Percy/Fantasy Jeff

Roger Craig Smith

Mary

Katie Crown

Malessica

Ivy Bishop

Emilio

Enrique Contreras

Diana

Jodi Benson

Mel/The Moon

John DiMaggio

Tony

Greg Cipes

Guy in Car/Ice Cream Attendant/Newscaster

Chris Edgerly

Game Show Host

Jay Lay

Chelsea

Grace Kaufman

Vu/Phil

Bryson Barretto

Brady

Daniel DiMaggio

Dustin

Kyle Arem

Ms. Julip

Kate Berlant

Young Chad

Henry Kaufman

Sumo's Mom/On-Screen Actress/Old Lady

Christine Lakin

Julian

Joshua Black

Kelly/Girl 1

Annie Cygan

Bella

Bria D. Singleton

Flight Attendant Dan

Alan Tudyk

Laundromat Owner/Old Lady

Audrey Wasilewski

Tiff/Female Employee

Abigail Revasch

Mr. Reese

Donovan Patton

Xavius

S. Scott Bullock

Rough Rider Cashier/Narrator

Cynthian Kaye Williams

Tree

Fred Stoller

Preston/Dino Kid

Jayden Besana

Rita/Patsie

Maddy McGraw

Cloris

Cloris Leachman

Jock

Hayden Ezzy

Cubicle Worker 1/Lady at Cubicle/Business Lady

Kari Wahlgren

Mr. Jones

David Shatraw

Capt. Tom

John Waters

Phil/Cronie

Fred Tatasciore

Fartholomew

Robin Atkin Downes

Joshua/Sword Swallower

Brent Popolizio

Bus Driver

Channon Dade

Courtlin

Tayler Buck

EJ/Incidental Lady

Lea DeLaria

Dad/Narrator

Cole Sanchez

Little Girl

Alison Fernandez

Emilo

Albert Gonzales

Coco

Megan Uesugi

Hispanic Woman

Jacqueline Obradors

Tanner

Ari Rubin

Mr. Mozer

Brett Gelman

Old Jeff

Phil LaMarr

Kimby

Isabella Niems

Daughter

Livvy Stubenrauch

Principal

Dan White

Nathan/Amy Shutzger

Damien Haas

Back Guy/Belson's Dad/Cubicle Worker 2

Rick Zieff

Breehn

Joshua Rush

Shop Boy 2/Sumo's Brother 1

Kai Scott

Frankie Do Dad

Andy Milonakis

Cynthia/Finsy

Mena Suvari

Rose

June Squibb

Sue

Tig Notaro

Shop Boy 1/Sumo's Brother 2

Hudson West

Ms. Lofton

Jenelle Lynn Randall

Lucy

Kylie Rogers

Jimmy Chakravorthy

Aryan Simhadri

Hershey/Kid Hershey

James Arnold Taylor