Klaus Kinski
Jacques Müller (Jacmel)
Oliver Reed
Dave Averconnelly
Nicol Williamson
Cmdr. William Bulloch
Sarah Miles
Dr. Marion Stowe
Sterling Hayden
Howard Anderson
Cornelia Sharpe
Ruth Hopkins
Lance Holcomb
Philip Hopkins
Susan George
Louise Andrews
Mike Gwilym
Det. Constable Dan Spencer
Edward Hardwicke
Lord Dunning
John Forbes-Robertson
Sgt. Nash
Nicholas Donnelly
Superintendent
Charles Cork
Driver's Mate
Eric Richard
Airline Clerk
Katherine Wilkinson
Susan Stowe
Arnold Diamond
Head Waiter
Pat Gorman
Policeman (uncredited)
Sally Lahee
Woman in No.17
Eric Kent
Workman (uncredited)
Guy Standeven
Passer-by (uncredited)