Jack Oakie
— Bill Martin
Ann Sothern
— Mary Strand
Eduardo Ciannelli
— Professor Herman
Alan Bruce
— Larry Frank, a movie stand-in
Edgar Kennedy
— Police Lt. Garrison
Joan Woodbury
— Doris Duane, a film actress
Bradley Page
— Ralph Waring
Paul Guilfoyle
— Gibbons, a film director
Willie Best
— Warts, Martin's manservant
William Corson
— Beckett
Alec Craig
— Eddie - Doorman
Paul Hurst
— Motorcycle Cop
George Rosener
— Policeman
Ann Hovey
— Script Girl
Marie Marks
— Hair Dresser
Al Klein
— Cameraman
Fred Kelsey
— Jailer
Robert Emmett O'Connor
— Casey
Philip Morris
— Sullivan
Dick Rush
— Grimes
Wally Albright
— Child movie fan
Bobby Barber
— Photographer
Bud Jamison
— Man whose beard catches fire
Leona Roberts
— Mrs. Abbington
Ronald R. Rondell
— Nightclub headwaiter
Richard Lane
— Barker