Dean Martin (Tony Ryder), Shirley MacLaine (Katie Robbins), Cliff Robertson (Warren Kingsley, Jr.), Charles Ruggles (Dr. Warren Kingsley Sr.), Norma Crane (Marge Coombs), Jack Weston (Lasker), John Hudson (Harry Lane), Jerome Cowan (Sam Weaver), Gale Gordon (Oliver Dunning), Ralph Dumke (Baker)