Lon Chaney Jr.

Mr. Demitri (as Lon Chaney)

Arthur Lake

Pete

Lloyd Bridges

Ray Douglas

John Qualen

Capt. Athos

Dickie Moore

George Athos

Eric Feldary

Alex

Ian MacDonald

Nick

Tanis Chandler

Simi

Harry Cheshire

Uncle Mike

Irving Allen

Director

Eustace L. Adams

Story

Max Trell

Screenplay

Forrest Judd

Screenplay

Irving Allen

Producer

James S. Burkett

Producer

Arthur Lake

Producer

René Garriguenc

Music

Lucien Moraweck

Music

Jack Greenhalgh

Director of Photography

Charles Craft

Editor

Charles S. Gould

Assistant Director

J.S. Westmoreland

Sound Recordist

Mary Gibsone

Script Supervisor