Lane Toran

Arnold (voice)

Francesca Marie Smith

Helga Pataki (voice)

Jamil Walker Smith

Gerald Johanssen (voice)

Tress MacNeille

Grandma Gertrude (voice)

Dan Castellaneta

Grandpa Phil (voice)

Maurice LaMarche

Big Bob Pataki (voice)

Kath Soucie

Miriam Pataki (voice)

Olivia Hack

Rhonda Wellington Lloyd (voice)