I honestly can't think of any. No one has shown pure power with speed like this. Not where he is literally carrying several defenders down the field anyway.
I've been calling him a "poor man's Earl Campbell" for years now, but that's not really fair. Marshawn's just too special to be a "version" of anybody at this point. He's about reached the point where people a decade from now are going to say, "That guy reminds me a little bit of Marshawn Lynch..."