Lon Chaney Jr. as Kharis

Peter Coe as Dr. Ilzor Zandaab

Virginia Christine as Princess Ananka

Kay Harding as Betty Walsh

Dennis Moore as Dr. James Halsey

Martin Kosleck as Ragheb

Kurt Katch as Cajun Joe

Addison Richards as Maj. Pat Walsh

Holmes Herbert as Dr. Cooper

William Farnum as The Sacristan

Charles Stevens as Achilles

Napoleon Simpson as Goobie

Eddie Abdo as Pierre (uncredited)

Enrique Acosta as Bit (uncredited)

Julius Aicardi as Bit (uncredited)

Sam Appel as Bit (uncredited)

Eumenio Blanco as Worker (uncredited)

Nina Bara as Young Cajun Woman at Cafe (uncredited)

Oscar Blank as Bit (uncredited)

Budd Buster as Cajun standing at bar, smoking pipe (uncredited)

Sam Calpriest as Bit (uncredited)

Henry Carr as Bit (uncredited)

Steve Cavalieri as Bit (uncredited)

Bert Cefali as Bit (uncredited)

Ann Codee as Tante Berthe (uncredited)

James Crane as The Pharaoh in Flashback (archive footage / uncredited)

John Dako as Bit (uncredited)

Rod De Medici as Bit (uncredited)

Ray De Ravenne as Bit (uncredited)

Armand Delmar as Bit (uncredited)

George L. Derrick as Bit (uncredited)

Heenan Elliott as Construction Worker (uncredited)

Ted Elliott as Bit (uncredited)

Al Ferguson as Construction Worker (uncredited)

Arthur J. Flaven as Bit (uncredited)

Jay Gerard as Bit (uncredited)

Otto Gervice as Bit (uncredited)

Cliff Herd as Bit (uncredited)

Herbert Heywood as Hill - Foreman (uncredited)

John Impolito as Bit (uncredited)

Boris Karloff as Kharis in Flashback (archive footage / uncredited)

Manuel Lopez as Bit (uncredited)

Jack Lorenz as Bulldozer Driver (uncredited)

John Marlin as Bit (uncredited)

Earl Montgomery as Bit (uncredited)

Mike Morelli as Barfly (uncredited)

Anthony Natale as Bit (uncredited)

Ernesto Palmese as Bit (uncredited)

Dario Piazza as Bit (uncredited)

Paul Rochin as Bit (uncredited)

Joe Rubino as Bit (uncredited)

Tony Santoro as Ulysses (uncredited)

Hector V. Sarno as Cajun in Cafe (uncredited)

Phil Shepard as Bit

Renato Siauss as Bit (uncredited)

Charles Soldani as Barfly (uncredited)

Armand Tanny as Bit (uncredited)

Sid Troy as Bit (uncredited)

Tom Tyler as Kharis in Flashback (archive footage / uncredited)

Ernesto Zambrano as Bit (uncredited)