Bela Lugosi

Dr. Alex Zorka / Dr. Zane

Robert Kent

Capt. Bob West

Dorothy Arnold

Jean Drew

Edwin Stanley

Dr. Fred Mallory

Regis Toomey

Lt. Jim Daly

Jack C. Smith

Monk

Edward Van Sloan

Jarvis

Dora Clement

Ann Zorka

Anthony Averill

Rankin

Hugh Huntley

Perkins

Monte Vandergrift

Al

Frank Mayo

Train Engineer

Jim Farley

Skipper

Eddie Acuff

Mac

Reed Howes

Signalman

Ed Wolff

The Robot

Hooper Atchley

Experimental Lab Tech

Roy Barcroft

AMI Agent Parker

Robert Blair

Smith

Al Bridge

White Rose Sailor

Don Brodie

Thug

Lane Chandler

Henchman with Rankin

Edmund Cobb

Army Sergeant

Lee J. Cobb

Road Crew Foreman (archive footage)

Eddie Dunn

Policeman

Jerry Frank

Henchman with Rankin

Karl Hackett

Brown

Charles King

Cop

George Magrill

Thug-Pilot / Schooner Crewman

Monte Montague

Airplane Mechanic

Pat O'Malley

AMI Chief

David Sharpe

Schooner Sailor

Tom Steele

Train Conductor / Radio Truck Driver

Forrest Taylor

Black

Harry Wilson

Schooner Crewman