Klaus Kinski as Jacques Müller (Jacmel)

Oliver Reed as Dave Averconnelly

Nicol Williamson as Cmdr. William Bulloch

Sarah Miles as Dr. Marion Stowe

Sterling Hayden as Howard Anderson

Cornelia Sharpe as Ruth Hopkins

Lance Holcomb as Philip Hopkins

Susan George as Louise Andrews

Michael Gough as David Ball

Mike Gwilym as Det. Constable Dan Spencer

Edward Hardwicke as Lord Dunning

John Forbes-Robertson as Sgt. Nash

Hugh Lloyd as Cab Driver

Rita Webb as Mrs. Loewenthal

Maurice Colbourne as Sampson

Nicholas Donnelly as Superintendent

Ian Brimble as Constable

Alan Ford as Peters

Cyril Conway as Man in 17

David Sterne as Driver

Charles Cork as Driver's Mate

Eric Richard as Airline Clerk

Howard Bell as Constable

Norman Mann as Williams

Tony Meyer as Martin

Michael Watkins as Rogers

Gerard Ryder as Smith

Moti Makan as Mr Mukerjee

Katherine Wilkinson as Susan Stowe

Arnold Diamond as Head Waiter

Pat Gorman as Policeman (uncredited)

Sally Lahee as Woman in No.17

Eric Kent as Workman (uncredited)

Guy Standeven as Passer-by (uncredited)