- Jerry Lewis
- Clayton Poole
- Marilyn Maxwell
- Carla Naples
- Reginald Gardiner
- Harold Hermann
- Salvatore Baccaloni
- Gigi 'Papa' Naples
- Hans Conried
- Mr. Wright
- Isobel Elsom
- Mrs. Van Cleeve
- James Gleason
- Doc Simpkins
- Ida Moore
- Miss Bessie Polk
- Gary Lewis
- Young Clayton
- Hope Emerson
- Mrs. Rogers
- Alex Gerry
- Judge Jenkins
- Mary Treen
- Nurse
- Judy Franklin
- Young Carla Naples
- Connie Stevens
- Sandra Naples
- George Sanders
- Danny Poole
- Dorothy Abbott
- Secretary
- Ted Allan
- Still Photographer
- Sam Bagley
- Nurse
- Jack Benny
- Carlos, the matador
- Arthur Berkeley
- Townsman
- Joe Brooks
- Reporter
- Nick Castle
- Choreographer
- Helen Chapman
- Secretary
- Milton Charleston
- Doctor
- Edith Clair
- Bit Role
- Marian Collier
- Secretary
- Chester Conklin
- Bit Role
- Franklyn Farnum
- Bit Role
- Dominic Fidelibus
- Reporter
- Mary Foran
- Mrs. Menefee
- Joe Gray
- Doctor
- Len Hendry
- Director
- Dickie Humphreys
- Dancer / Actor (uncredited)
- Frank Jenks
- Reporter
- Perk Lazelle
- Townsman
- Danny Lewis
- Bit Role
- Robert Locke Lorraine
- Reporter
- Rudy Makoul
- Reporter
- Hank Mann
- Street Sweeper
- Kathy Marlowe
- Secretary
- Leon Martin
- Assistant Director
- Ann McCrea
- Secretary
- Monty O'Grady
- Police Officer
- Barbara Pepper
- Mrs. Oberholt
- Murray Pollack
- Police Officer
- 'Snub' Pollard
- Bit Role
- Harry Ray
- Makeup Man
- Ned Roberts
- Doctor
- Michael Ross
- Doctor
- William Waycott
- Baby
- Will Wright
- Fire Chief
