Peter Lawford
— Tony Brown
Jane Greer
— Katie McDermad
Gig Young
— Dr. Jeff Chadwick
Rita Corday
— Lucille Brown
Howard Wendell
— Oliver Wherry
Otto Hulett
— Hugo McDermad
Barbara Brown
— Edna McDermad
Barbara Ruick
— Ann Elcott
Kathryn Card
— Nurse Vogel
Tommy Farrell
— Dr. Rollie Cobb
Paul Smith
— Frank Elcott
Helene Winston
— Flora Adams
Elaine Stewart
— Girl in Club Car
Perry Sheehan
— Nurse
Don Anderson
— Interne (uncredited)
Joanne Arnold
— Nurse (uncredited)
Ivan Browning
— Pullman Porter (uncredited)
Stephen Chase
— Dr. Bretherton (uncredited)
Edward Clark
— Judge (uncredited)
John Close
— Cop (uncredited)
Julia Dean
— Aunt Clara Chadwick (uncredited)
Jack Deery
— Party Guest (uncredited)
Ned Glass
— Harlow Douglas (uncredited)
Ralph Grosh
— Photographer (uncredited)
Alan Harris
— Court Clerk (uncredited)
Jerry Hausner
— Patient (uncredited)
Marjorie Jackson
— Nurse (uncredited)
Diane James
— Nurse (uncredited)
Nikki Juston
— Tony's Maid (uncredited)
Kenner G. Kemp
— Interne (uncredited)