Ann-Margret
— Kelly Olsson
Anthony Franciosa
— Ric Colby
Robert Coote
— Sir Hubert Charles
Yvonne Romain
— Karen Charles
Horace McMahon
— Detective Sergeant Hooker
Nydia Westman
— Aunt Cora
Craig Hill
— Sammy Jenkins
Milton Frome
— Mr. Olsson
Mary LaRoche
— Mrs. Olsson
Barbara Nichols
— Blossom LaTour
Romo Vincent
— Jack Happy
Clete Roberts
— Clete Roberts
Myrna Ross
— Sally
Corinne Cole
— Sir Hubert's Secretary
Bert Freed
— Police Captain
Larry D. Mann
— John Mallory
Steven Geray
— Man with Fish
Diki Lerner
— Svengali
Francine Pyne
— Receptionist (uncredited)
Robert Aiken
— Photographer (uncredited)
Phil Arnold
— Seedy Character (uncredited)
Marjorie Bennett
— Elderly Woman (uncredited)
Larry J. Blake
— Honest Hal (uncredited)
Ricki Covette
— Tall Girl (uncredited)
Phyllis Davis
— Model (uncredited)
Kellie Everts
— Winter (uncredited)
Veronica Ericson
— Model (uncredited)
James Hibbard
— Eddie (uncredited)
Tiger Joe Marsh
— Burley Greek (uncredited)
Norman Leavitt
— Vendor (uncredited)