Wallace Shawn

Rex (voice)

Self

Harold Jenkins

John Fate (voice)

Mr. Mustela (voice)

Cyrus Rose

Lucky

Mort Rifkin

Vizzini

Mr. Crocus

Rex (voice)

Rex (voice)

Frank

Father Francis Ignatius

Rex (voice)

Humphrey (voice)

Self

Mr. Woodley (voice)

Morris Mole (voice)

Barry (voice)

Pete (voice)

Jyle (voice)

Dr. Derek

Albert

John Sturgis

Principal Miller

David

Herb Smith

Charles Lester