Mason Cotton

Character: Arnold (voice)

Benjamin Flores Jr.

Character: Gerald (voice)

Francesca Marie Smith

Character: Helga (voice)

Anndi McAfee

Character: Phoebe (voice)

Carlos Alazraqui

Character: Eduardo (voice)

Alfred Molina

Character: La Sombra (voice)

Justin Shenkarow

Character: Harold (voice)

Antoinette Stella

Character: Stella (voice)

Laya DeLeon Hayes

Character: Nadine (voice)

Jamil Walker Smith

Character: Paulo (voice)

Nika Futterman

Character: Olga (voice)

Olivia Hack

Character: Rhonda (voice)

Lane Toran

Character: Che (voice)

Dan Butler

Character: Mr. Simmons (voice)

Dan Castellaneta

Character: Grandpa (voice)

Tress MacNeille

Character: Grandma (voice)

Maurice LaMarche

Character: Bob Pataki (voice)

Dom Irrera

Character: Ernie (voice)

Kath Soucie

Character: Miriam (voice)

Danielle Judovits

Character: Big Patty (voice)

Danny Cooksey

Character: Stoop Kid (voice)

Jim Belushi

Character: Coach Wittenberg (voice)

Craig Bartlett

Character: Miles (voice)

Gavin Lewis

Character: Eugene (voice)

Jet Jurgensmeyer

Character: Stinky (voice)

Aiden Lewandowski

Character: Sid (voice)

Nicolas Cantu

Character: Curly (voice)

Wally Wingert

Character: Oskar (voice)

Stephen Stanton

Character: Pigeon Man (voice)