Dirk Bogarde as Dr. Simon Sparrow

Brenda De Banzie as Miss Muriel Mallet

Brigitte Bardot as Helene Colbert

James Robertson Justice as Captain Wentworth Hogg

Maurice Denham as Steward Easter

Michael Medwin as Third Officer Trail

Hubert Gregg as Second Officer Aubrey Archer

James Kenney as Fellowes

Raymond Huntley as Captain Beamish

Geoffrey Keen as Hornbeam

George Coulouris as Chippie

Noel Purcell as Corble

Jill Adams as Jill

Joan Sims as Wendy Thomas

Cyril Chamberlain as Mr. Whimble

Toke Townley as Vic Jenkins

Thomas Heathcote as Ordinary Seaman Wilson

Abe Barker as Harry

Frederick Piper as Sandyman

Michael Shepley as Jill's Father

Eugene Deckers as Colonel Porella

Mary Laura Wood as Blonde

Ekali Sokou as Phyllis

Joan Hickson as Mrs. Thomas

Felix Felton as Dr. George Thomas

Diana Dors as Party Guest (uncredited)

Fred Griffiths as Seaman (uncredited)

Carol White as Girl (uncredited)

Chris Adcock as Crewman (uncredited)

William Baskiville as Passenger (uncredited)

Martin Benson as Head Waiter (uncredited)

Jim Brady as Ordinary Seaman Merritt (uncredited)

Daniel Brown as Man in Jail (uncredited)

Dennis Carnell as Customs Officer (uncredited)

Paul Carpenter as Captain (uncredited)

Austin Cooper as Passenger (uncredited)

Dan Cressey as Crewman (uncredited)

Richard Duke as Passenger (uncredited)

Fred Haggerty as Released Prisoner (uncredited)

Patrick Halpin as Passenger (uncredited)

Lindsay Hooper as Crewman (uncredited)

Gordon Humphries as Passenger (uncredited)

Harold Kasket as Policeman in Prison (uncredited)

Cyril Kent as Released Prisoner (uncredited)

Aileen Lewis as Lady in Nightclub (uncredited)

Jack Mandeville as Waiter (uncredited)

Louis Matto as Crewman (uncredited)

Gibb McLaughlin as Undertaker (uncredited)

Jill Melford as Lady at Dance (uncredited)

John More as Passenger (uncredited)

Bob Raymond as Policeman (uncredited)

Fred Real as Passenger / Officer (uncredited)

Arthur Sandifer as Passenger (uncredited)

Stuart Saunders as Policeman on Dock (uncredited)

Delene Scott as Woman (uncredited)

Jack Sharp as Crewman (uncredited)

John Singer as Sailor in Prison (uncredited)

Paddy Smith as Passenger (uncredited)

George Spence as Undertaker (uncredited)

Emile Stemmler as Waiter (uncredited)

John Timberlake as Crewman (uncredited)

Joe Wadham as Passenger (uncredited)

Eric Wetherell as Passenger (uncredited)