Bela Lugosi
Prof. Dexter
Acting
John Carradine
Prof. John Gilmore
Acting
Frank Moran
Ape Man
Acting
Teala Loring
Anne Gilmore
Acting
Tod Andrews
Steve Rogers
Acting
Mary Currier
Hilda Gilmore
Acting
Ernie Adams
Tramp, Willie the Weasel
Acting
Eddy Chandler
Sergeant
Acting
George Zucco
Ape Man
Acting
Mike Donovan
Policeman Barney (uncredited)
Acting
George Eldredge
Policeman (uncredited)
Acting
Horace B. Carpenter
Theater Watchman (uncredited)
Acting