Director
Walter Summers
DIRECTOR
Stars (in credits order)
Bela Lugosi
Dr. Feodor Orloff
Hugh Williams
Det. Insp. Larry Holt
Greta Gynt
Diana Stuart
Edmon Ryan
Lt. Patrick O'Reilly
Wilfred Walter
Jake
Alexander Field
Fred Grogan
O.B. Clarence
Prof. John Dearbornuncredited,voice
May Hallatt
Police Constable Griggsuncredited
Bryan Herbert
Police Sgt. Walshuncredited
Arthur E. Owen
Dumb Louuncredited
Charles Penrose
Morrison - Undercover Detectiveuncredited
Gerald Pring
Henry Stuartuncredited
Philip Stewart
Scotland Yard Detectiveuncredited
George Street
Scotland Yard Commissioneruncredited
Julie Suedo
Orloff's Secretaryuncredited