Carroll Baker as Jean Harlow

Red Buttons as Arthur Landau

Raf Vallone as Marino Bello

Angela Lansbury as Mama Jean Bello

Peter Lawford as Paul Bern

Mike Connors as Jack Harrison

Martin Balsam as Everett Redman

Leslie Nielsen as Richard Manley

Mary Murphy as Sally Doane

Hanna Landy as Beatrice Landau

Peter Hansen as Hansen

Kipp Hamilton as Marie Tanner

Peter Leeds as Parker

Billy Bletcher as Policeman

Fritz Feld as Fritz

Julie Parrish as Serena Harrison

Dennis Cross as Second Director