A mad scientist changes his simple-minded handyman into a werewolf in order to prove his supposedly crazy scientific theories - and exact revenge.
George Zucco
as Lorenzo Cameron
Anne Nagel
as Lenora Cameron
Johnny Downs
as Tom Gregory
Glenn Strange
as Petro
Robert Strange
as Professor Blaine
Gordon De Main
as Professor Fitzgerald
John Elliott
as Professor Hatfield
Reginald Barlow
as Professor Warwick
Sarah Padden
as Grandmother
Mae Busch
as Susan
Ed Cassidy
as Father
Henry Hall
as Country Doctor
