Who is the b/w movie actor Igor is a caricature of?

Question

http://www.dreadcentral.com/img/news/apr08/igor.jpg

I know it isn't Marty Feldman, and I can picture him in my head, but can't figure out his name. I've been trying to figure it out all day, and I just can't.

Answer 1

It's a likeness of John Cusack.

I don't believe there is one.