"Molly and Terry Donahue, plus their three children, are The Five Donahues. Youngest son Tim meets hat-check girl Vicky and the family act begins to fall apart."
Ethel Merman
as Molly Donahue
Marilyn Monroe
as Vicky
Mitzi Gaynor
as Katy Donahue
Dan Dailey
as Terence Donahue
Donald O'Connor
as Tim Donahue
Johnnie Ray
as Steve Donahue
Richard Eastham
as Lew Harris
Hugh O'Brian
as Charles Gibbs
Frank McHugh
as Eddie Dugan
Rhys Williams
as Father Dineen
Lee Patrick
as Marge
Eve Miller
as Helen
Dorothy Abbott
as Showgirl (uncredited)
Lyle Talbot
as Stage Manager (uncredited)
George Chakiris
as Dancer (uncredited)
John Doucette
Alvy Moore
as Katy's Date (uncredited)
Ron Nyman
as Tattooed Sailor (uncredited)
Walter Winchell
as Walter Winchell (voice) (uncredited)
Dorothy Adams
as Nurse (uncredited)
Robin Raymond
as Lillian Sawyer (uncredited)
Sol C. Siegel
Producer
Robert L. Simpson
Editor
Lyle R. Wheeler
Art Direction
Stuart A. Reiss
Set Decoration
Walter Lang
Director
Phoebe Ephron
Screenplay
Henry Ephron
Walter M. Scott
Lamar Trotti
Story
John DeCuir
Leon Shamroy
Director of Photography
Irving Berlin
Songs
Music
Travilla
Costume Design
Miles White
Ben Nye
Makeup Artist
Helen Turpin
Hair Designer
Gaston Glass
Production Manager
Ray Kellogg
Visual Effects
Charles LeMaire
Wardrobe Supervisor
Sam Benson
Wardrobe Assistant
Leonard Doss
Color Assistant
Alfred Newman
Music Supervisor
Lionel Newman
Bernard Mayers
Orchestrator
Earle Hagen
Robert Alton
Choreographer
Murray Spivack
Sound
E. Clayton Ward
Original Music Composer