Cast
Boris Karloff
Prof. Nathaniel Billings
Peter Lorre
Dr. Arthur Lorentz
Maxie Rosenbloom
Maxie
Jeff Donnell
Winnie Slade
Larry Parks
Bill Layden
Maude Eburne
Amelia Jones
Don Beddoe
J. Gilbert Brampton
George McKay
Ebenezer
Eddie Laughton
Mr. Johnson
Frank Puglia
Silvio Baciagalupi
Frank Mitchell
Officer Fred
James C. Morton
Trooper Quincy
Frank Sully
Officer Joe Starrett
Patrick McVey
Munitions Plant Road Guard
Robert Emmett Keane
Alarm Clock Salesman
