Jerry Lewis

Morty S. Tashman

Brian Donlevy

Tom 'T.P.' Paramutual

Howard McNear

Dexter Sneak

Dick Wesson

The A.D.

Kathleen Freeman

Mrs. Helen Paramutual

Robert Ivers

Young NY Director Who Argues with T.P.

Renée Taylor

Miss Giles

Stanley Adams

Grumpy

Isobel Elsom

Irma Paramutual

Sig Ruman

Baron Elston Carteblanche

Doodles Weaver

Weaver

Fritz Feld

Busby - Roaring 20's Director

Kenneth MacDonald

Mr. Fumble

Joey Forman

Jedson

Iris Adrian

Anastasia Anastasia, Actress

Del Moore

M.C. at Premiere

Richard Bakalyan

Jason, Anastasia's Director

Joe Besser

Man Watching Rushes

Milton Frome

Mr. Greenback

Mike Mazurki

Blonde 'Movie Siren'

Bill Richmond

Bespectacled Man in Elevator

Caroline Richter

Bubblegum Blower in Elevator

Michael Ross

Big Man in Elevator (as Mike Ross)

Benny Rubin

Mr. Wabenlotnee

Regis Toomey

Studio Exec with the Baron

Mary Treen

Commissary Cashier

Herb Vigran

Cigar Smoker in Elevator

Jerry Wayne

Confederate Soldier in Movie

William Wellman Jr.

Actor / Lover in Film

Quinn O'Hara

Model (uncredited)