Here are some studies from the Hitchcock film "The Man Who Knew Too Much" (1934 version). I picked it up at the dollar store, which was a great find for me. I really enjoy watching old films from when typecasting wasn't considered a BAD thing. It's great for character designers because these people's role read almost instantly (Peter Lorre looks like a fucking GOON). Nowadays, we get away with casting whichever actor is hot at the moment for any role (like Ben Stiller).