John Forsythe as Sam Marlowe

Shirley MacLaine as Jennifer Rogers

Edmund Gwenn as Captain Wiles

Mildred Natwick as Miss Gravely

Mildred Dunnock as Mrs. Wiggs

Jerry Mathers as Arnie Rogers

Royal Dano as Calvin Wiggs

Parker Fennelly as Millionaire

Barry Macollum as Tramp

Dwight Marfield as Dr. Greenbow

Leslie Woolf as Art Critic (uncredited)

Philip Truex as Harry Worp (uncredited)

Ernest Curt Bach as Chauffeur (uncredited)

Alfred Hitchcock as Passer-by (uncredited)