Dale Robertson

as Vance Colby

Debra Paget

as Melanie Barbee

Thomas Gomez

as Antoine Barbee

Lisa Daniels

as Ivette Rivage

Kevin McCarthy

as Andre Rivage

John Wengraf

as Nicholas Cadiz

Douglas Dick

as Claude St. Germaine

Henri Letondal

as Police Commissioner Robert Renard

Donald Randolph

as Pierre Bonet

Jay Novello

as Rene Garonne

Woody Strode

as Josh

Bill Walker

as Rivage's Butler (uncredited)

Parley Baer

as Riverboat Captain (uncredited)

Peter Mamakos

as Etienne (uncredited)