Gene Wilder

George Caldwell

Jill Clayburgh

Hildegard 'Hilly' Burns

Richard Pryor

Grover Muldoon

Patrick McGoohan

Roger Devereau

Ned Beatty

Bob Sweet

Clifton James

Sheriff Chauncey

Ray Walston

Mr. Edgar Whiney

Stefan Gierasch

Professor Schreiner & Johnson

Len Birman

Chief

Valerie Curtin

Plain Jane

Lucille Benson

Rita Babtree

Scatman Crothers

Ralston

Richard Kiel

Reace

Fred Willard

Jerry Jarvis

Delos V. Smith Jr.

Burt

Mathilda Calnan

Blue-Haired Lady

Henry Beckman

Conventioneer

Harvey Atkin

Conventioneer

Ed McNamara

Benny

Raymond Guth

Night Watchman

John Daheim

Engineer #2

Bill Henderson

Red Cap

J.A. Preston

Waiter (uncredited)

Nick Stewart

Shoeshiner