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
