An average television repairman must care for the newborn triplets of his former hometown sweetheart—now a famous movie star—so her career will not suffer.
Jerry Lewis
as Clayton Poole
Marilyn Maxwell
as Carla Naples
Connie Stevens
as Sandra Naples
Salvatore Baccaloni
as Gigi 'Papa' Naples
Reginald Gardiner
as Harold Hermann
Ida Moore
as Miss Bessie
Gary Lewis
as Young Clayton
Isobel Elsom
as Mrs. Van Cleeve
James Gleason
as Doc Simpkins
Hans Conried
as Mr. Wright
Hope Emerson
as Mrs. Rogers
Alex Gerry
as Judge Jenkins
