Boris Karloff appeared on the stage of the Belasco Theatre, New York City in the role of Galloway in a Martin Flavin stage play. It was a minor part, however, it was an important one: Galloway, the prison trusty who becomes a killer. On the strength of his performance, he was soon cast in the film version. During 1931-32, twenty-three of his films were released, an average of nearly one a month which included Frankenstein. Criminal Code was the big break Karloff was waiting for and he never gave up acting until the very end.