Arnold's Thanksgiving

Phillip Van Dyke

Arnold (voice)

Francesca Marie Smith

Helga Pataki (voice)

Jamil Walker Smith

Gerald Johanssen (voice)

Olivia Hack

Rhonda Wellington Lloyd (voice)

Justin Shenkarow

Harold Berman (voice)

Dan Castellaneta

Grandpa Phil (voice)

Christopher Walberg

Stinky Peterson (voice)

Ben Diskin

Eugene Horowitz (voice)

Dom Irrera

Ernie Potts (voice)

Tress MacNeille

Grandma Gertie (voice)

Steve Viksten

Oskar Kokoshka (voice)

Baoan Coleman

Mr. Hyunh (voice)

Mary Scheer

Suzie Kokoshka (voice)

Kath Soucie

Miriam Pataki (voice)

Craig Bartlett

Brainy (voice; uncredited)

Nika Futterman

Olga Pataki (voice)

Dan Butler

Mr. Simmons (voice)

Anndi McAfee

Phoebe Heyerdahl / Joy (voice)

Maurice LaMarche

Big Bob Pataki / Uncle Chuck (voice)

Maria Bamford

Mayor Dixie (voice)

Mitzi McCall

Pearl Simmons (voice)