The Wolf Man (1941) - The Month of Monsters Begins!
He only officially played the role of the Frankenstein Monster twice: once in The Ghost of Frankenstein (1942) and then again in a 1952 episode of the TV series "Tales of Tomorrow" (1951). It wasn't until 1957 when the 1932 version of Frankenstein (1931) staring Boris Karloff would debut on TV. Also in 1957 Christopher Lee would assume the role of the monster in The Curse of Frankenstein (1957). Chaney played the role "unofficially" twice for Bud Abbott and Lou Costello, in Bud Abbott Lou Costello Meet Frankenstein (1948) in which he stood in for Glenn Strange for one scene while Strange recovered from a broken ankle, and for a 1951 "The Colgate Comedy Hour" (1950) episode where, in a mock-opera sketch, Chaney appears (for some reason) in full monster regalia and dances a Charleston with Lou Costello, then hangs around for the finale. Shortly before his death, Chaney complained in an interview that the serious horror film genre had been ruined by Abbott and Costello. - (IMDB)