Jack Lemmon

Professor Fate / Crown Prince Frederick Hoepnick

Tony Curtis

The Great Leslie

Natalie Wood

Maggie Dubois

Peter Falk

Max

Keenan Wynn

Hezekiah Sturdy

Arthur O'Connell

Henry Goodbody

Vivian Vance

Hester Goodbody

Dorothy Provine

Lily Olay

Larry Storch

Texas Jack

Ross Martin

Baron Rolfe Von Stuppe

George Macready

General Kuhster

Marvin Kaplan

Frisbee

Hal Smith

Mayor of Boracho

Denver Pyle

Sheriff

William Bryant

Baron's Guard

Ken Wales

Baron's Guard

Hal Needham

Saloon Brawler (uncredited)

Raoul Retzer

Mayor-Domo (uncredited)

Leslie Sketchley

Executive Board Member (uncredited)

Sam Harris

Man in Hallway at Sentinel

Kenner G. Kemp

Townsman

Bert Stevens

Townsman

Arthur Tovey

Reporter

Chuck Hayward

Soldier

George Boyce

Executive Board Member

Jerry Schumacher

Auto Worker

Charles Fredericks

Master of Ceremonies

Max Wagner

Barfly

Paul Bryar

Policeman (uncredited)

Jack Gordon

Observer at Start (uncredited)

Sol Gorss

Saloon Brawler (uncredited)

Harry Harvey

Executive Board Member (uncredited)

Bob Herron

Palace Guard (uncredited)

Chuck Hicks

Saloon Brawler (uncredited)

Christopher Riordan

Cowboy / Dancer (uncredited)

Charles Seel

Freight Agent (uncredited)

Paul Smith

First Employee (uncredited)

Tom Steele

Saloon Brawler (uncredited)

Dale Van Sickel

Driver-Contestant in Green Car, #3 (uncredited)