Donald Sinden as Peter Weston

Diana Dors as Vanessa Colebrook

Jeannie Carson as Moira O'Shannon

James Robertson Justice as Sir James Colebrook

Roland Culver as Colonel Geoffrey Weston

Stanley Holloway as The General

Avice Landone as Mrs. Weston

Richard Wattis as Hoskins

Stephen Boyd as Albert O'Shannon

Margaret Rutherford as Prudence Croquet

Frankie Howerd as M.C. at Alligator Rally (uncredited)

Henry Kendall as Valet

Michael Shepley as The Judge

Wilfrid Lawson as Irishman (uncredited)

Ernest Thesiger as Notcher (uncredited)

Carol White as Girl (uncredited)

Ronnie Stevens as Singer (uncredited)

Charles Carson as Wilfred Smethers (uncredited)

Joan Hickson as Piano Customer (uncredited)

Maurice Kaufmann as Ed (uncredited)

Violet Farebrother as Woman in Wheelchair (uncredited)

Edie Martin as Wheelchair Pusher (uncredited)

Martin Miller as Bandleader at Alligator Rally (uncredited)

Prince Monolulu as Prince Monolulu (uncredited)

Nicholas Parsons as News Interviewer (uncredited)

Tony Selby as Boy with Stick (uncredited)

Bill Shine as Undetermined Secondary Role (uncredited)

Guy Standeven as Man Dancing at Party (uncredited)

George Woodbridge as PC Jorkins (uncredited)

Victor Harrington as Man in Music Shop (uncredited)

Harry Green as Irving J. Rosenbloom (uncredited)