Keeping busy

Yeah, I've been keeping busy, but that heading isn't about me. Right now on TV, there's a movie called After the Thin Man. There's a bit player in the movie who I think is named Lee Phelps. He reminds me of Ed Asner. In fact, I thought it was Ed Asner, until I realized that in 1936, Ed Asner wouldn't have looked that old. I looked up Lee Phelps on IMDB, and discovered that this actor had been cast in nearly 600 movies during his career. Which got me to wondering whether any other actor in history has been in more movies. If anyone wants to do the research and let me know in the comments area, I'd be curious to know.