This is Clayface as he appears in Dark Knight: The Animated Series. He was once a famous actor known as Basil Karlo. After an a run-in with the Joker, he had his face disfigured beyond recognition. This left him jobless. Without a face or job to call his own, Karlo felt that he didn't even exist. With help from his former makeup artist, John Nicholson, he took on the identity of his former producer. Nicholson didn't know, however, that Karlo would use his producer's identity to take revenge on his former boss, and The Joker.