
62 minutes
9/30/1940
Dr. Bernard Adrian is a kindly scientist who seeks to cure a young woman's polio. He needs human spinal fluid to complete the formula for his experimental serum. Meanwhile, a vicious circus ape has broken out of its cage, and is terrorizing the townspeople. Can there be a connection?

Boris Karloff
as Dr. Bernard Adrian

Maris Wrixon
as Frances Clifford

Gene O'Donnell
as Danny Foster

Dorothy Vaughan
as Mother Clifford

Henry Hall
as Sheriff Jeff Halliday

Selmer Jackson
as Dr. McNulty

Gertrude Hoffmann
as Jane the Housekeeper

Jessie Arnold
as Mrs. Brill

Billy Bletcher
as Short Mustached Posse Man

Harry C. Bradley
as Quinn

George Cleveland
as Mr. Howley

Ray Corrigan
as Nabu
Pauline Drake
as Young Girl
Mary Field
as Mrs. Mason

Gibson Gowland
as Posse Member

Julia Griffith
as Townswoman

I. Stanford Jolley
as Ape Trainer
Stan Jolley
as Boy in Soda Shop
Jack Kennedy
as Dep. Archie Tomlin

Donald Kerr
as Citizen Carrying Mauled Ape Trainer

Philo McCullough
as Henry Mason
Buddy Swan
as Willie Brill

Minerva Urecal
as Townswoman