Eugene's Birthday

Spencer Klein

Arnold (voice)

Francesca Marie Smith

Helga Pataki (voice)

Jamil Walker Smith

Gerald Johanssen (voice)

Olivia Hack

Rhonda Wellington Lloyd (voice)

Anndi McAfee

Phoebe Heyerdahl (voice)

Justin Shenkarow

Harold Berman (voice)

Dan Castellaneta

Grandpa Phil (voice)

Christopher Walberg

Stinky Peterson (voice)

Ben Diskin

Eugene Horowitz (voice)

Sam Gifaldi

Sid (voice)

Mayim Bialik

Maria (voice)

Charisma Carpenter

Lou Rawls

Harvey (voice)

Jordan Warkol

Chocolate Boy (voice)

Dom Irrera

Guard / Mr. Feltz (voice)