Tyrone Power as Mark Fallon

Piper Laurie as Angelique Dureau

Julie Adams as Ann Conant (as Julia Adams)

John McIntire as Kansas John Polly

Paul Cavanagh as Edmond Dureau

John Baer as Laurent Dureau

Ron Randell as George Elwood

Ralph Dumke as Caldwell

Robert Warwick as Paul O. Monet

William Reynolds as Pierre

Guy Williams as Andre

Alan Dexter as Man

Albert Cavens as Etienne

Dennis Weaver as Julian Contant

James Adamson as Steward at Fencing Club (uncredited)

Leon Alton as Fencing Student (uncredited)

Ernest Anderson as Bellhop (uncredited)

Carl Andre as Mate on the Sultana (uncredited)

LeRoi Antoine as Singer (uncredited)

Walter Bacon as Townsman (uncredited)

John Barton as Riverboat Passenger

Mary Bayless as Party Guest (uncredited)

Hugh Beaumont as Kennerly (uncredited)

Frederic Berest as Carnes (uncredited)

Paul Bradley as Gamber (uncredited)

Ralph Brooks as Card Player (uncredited)

Ivan Browning as Waiter (uncredited)

Dorothy Bruce as Girl (uncredited)

George Bruggeman as Fencing Student (uncredited)

Eduardo Cansino Jr. as Bit Part (uncredited)

Albert Cavens as Etienne - Fencing Instructor (uncredited)

Fred Cavens as Emile Maitre - Fencing Master (uncredited)

André Charlot as Keith (uncredited)