George C. Scott as Anthony Gethryn

Kirk Douglas as George Brougham / Vicar Atlee / Mr. Pythian / Arthur Henderson

Dana Wynter as Lady Jocelyn Bruttenholm

Clive Brook as Marquis of Gleneyre

Gladys Cooper as Mrs. Karoudjian

Herbert Marshall as Sir Wilfrid Lucas

Jacques Roux as Raoul Le Borg

John Merivale as Adrian Messenger

Marcel Dalio as Max Karoudjian

Bernard Archard as Pike

Tony Huston as Derek Bruttenholm

Ronald Long as Sir Robert Carstairs

Tony Curtis as Organ Grinder

Burt Lancaster as Protester

Robert Mitchum as Slattery

Frank Sinatra as Gypsy

Noel Purcell as Countryman (uncredited)

Richard Peel as Flood (uncredited)

John Huston as Lord Ashton (uncredited)

Bernard Fox as Lynch (uncredited)

Anita Sharp-Bolster as Mrs. Slattery (uncredited)