Houseboat

Cary Grant

Tom Winters

Sophia Loren

Cinzia Zaccardi

Martha Hyer

Carolyn Gibson

Harry Guardino

Angelo Donatello

Eduardo Ciannelli

Arturo Zaccardi

Murray Hamilton

Alan Wilson

Mimi Gibson

Elizabeth Winters

Paul Petersen

David Winters

Charles Herbert

Robert Winters

Madge Kennedy

Mrs. Farnsworth

John Litel

Mr. Farnsworth

Werner Klemperer

Harold Messner

Kathleen Freeman

Laundromat Gossip (uncredited)

?

Marc Wilder

Specialty Dancer (uncredited)

?

Ralph Brooks

Country Club Patron (uncredited)