Henry Winkler

Andy Schmidt

Kim Darby

Mary Crawford

Gene Saks

Sidney Seltzer

William Daniels

Mr. Crawford

Harold Gould

Hector Moses

Polly Holliday

Mrs. Crawford

Hervé Villechaize

Milton Miller

Bill Baldwin

Announcer in Des Moines

Ed Begley Jr.

Arnold - The King

Peter Brocco

Autograph Hound

Brandon Cruz

Sherman

Lucy Lee Flippin

Agatha Franklen

Charles Frank

Paul Harris

H.B. Haggerty

Captain Nemo

Ralph Manza

Bellman

Ken Olfson

Mr. Arnold

Will Seltzer

Eddie

Amzie Strickland

House Mother

Mary Woronov

Arlene

Gene LeBell

Reigning World Wrestling Champion (uncredited)

Roddy Piper

Leatherneck Joe Brady (uncredited)

Carl Reiner

Theater Director (uncredited)