"When an aspiring barber becomes inadvertently involved in the theft of a valuable diamond, necessity forces him to masquerade as a 12 year-old child - with humorous consequences."
Dean Martin
as Bob Miles
Jerry Lewis
as Wilbur Hoolick
Diana Lynn
as Nancy Collins
Nina Foch
as Gretchen Brendan
Raymond Burr
as Noonan
Mitzi McCall
as Skeets Powell
Veda Ann Borg
as Mrs. Noonan
Margery Maude
as Mrs. Ella Brendan
Romo Vincent
as Ticket Agent
Nancy Kulp
as Marty's Mother
Milton Frome
as Lieutenant O'Malley
Whitey Haupt
as Michael Brendan
Tommy Ivo
as Marty
Hans Conried
as Francois
Peggy Moffitt
as Agnes (uncredited)
Norman Taurog
Director
Sidney Sheldon
Screenplay
Fanny Kilbourne
Story
Edward Childs Carpenter
Theatre Play
Paul Jones
Producer
A. Earl Hedrick
Art Direction
Daniel L. Fapp
Director of Photography
Frank R. McKelvy
Set Decoration
Jack Mintz
Producer's Assistant
John P. Fulton
Special Effects
Archie Marshek
Editor
Hal Pereira
Wally Westmore
Makeup Supervisor
Michael D. Moore
Assistant Director
Edith Head
Costume Design
Sam Comer
Walter Scharf
Original Music Composer
Gene Merritt
Sound Recordist
Gene Garvin
Nick Castle
Choreographer