"You don't have to be a leading man" to make it in Hollywood, Miller told Fresh Air in 1990. He appeared in more than 100 films, including Gremlins and The Little Shop of Horrors.
Miller starred in dozens of Roger Corman's B-movies, including Bucket of Blood. Later, big name directors so admired his work that they began to give Miller small parts in their films. He appeared in all of of Joe Dante's movies, including the recent Gremlins 2.