Jacques Bergerac
Desmond
Jacques Bergerac
Desmond
Merry Anders
Dodie Wilson
Marcia Henderson
Marcia Blaine
Allison Hayes
Justine
Joe Patridge
Det. Sgt. Dave Kennedy
Fred Demara
The Great Impostor
Lawrence Lipton
Beatnik Poet Laureate
Eric Nord
King of the Beatniks (as Eric 'Big Daddy' Nord)
Guy Prescott
Dr. Philip Hecht
Jimmy Lydon
Emergency Doctor (as James Lydon)
Carol Thurston
Doris Scott
Eva Lynd
Woman from Audience
Don Ames
Audience Member (uncredited)
Eddie Baker
Observer at Scene (uncredited)
Nina Borget
Audience Member (uncredited)
Phyllis Cole
Mrs. McNear (uncredited)
Franklyn Farnum
Audience Member (uncredited)
Mary Foran
June Mayes (uncredited)
George Ford
Audience Member (uncredited)
Holly Harris
Mrs. Stevens (uncredited)
Kenner G. Kemp
Audience Member (uncredited)
Evan MacNeil
Victim (uncredited)
Monty O'Grady
Audience Member (uncredited)
Al Roberts
Audience Member (uncredited)
Cosmo Sardo
Theatre Greeter (uncredited)
George Blair
Director
Gitta Woodfield
Screenplay
William Read Woodfield
Screenplay
Archie R. Dalzell
Cinematography
Tony Lloyd
Makeup Artist
Edward Morey Jr.
Production Manager
Ray Gosnell Jr.
Assistant Director
Arden Cripe
Property Master
James West
Construction Manager
Ralph Butler
Recording Supervision
Martin Greco
Sound Editor
Roger J. Weinberg
Wardrobe Master
Eve Newman
Music Editor
Virginia Barth
Continuity
Gil Boyne
Technical Advisor
Charles B. Bloch
Producer
Ben Schwalb
Executive Producer
Marlin Skiles
Original Music Composer
William Austin
Editor
Dave Milton
Art Direction
Frank Wade
Set Decoration
Emile LaVigne
Makeup Artist
Milton Olsen
Special Effects