Are there any celebrities/famous people known to play Warhammer Fantasy/40K?

I have heard that Slyvester Stallone plays Blood Angels and that Robin Williams played Orks. While I haven't verified these claims, I would be interested to know if anybody with a high degree of celebrity status plays Warhammer, and if so, what armies they field.

Bonus: What armies would suit certain celebrities perfectly? I was always amazed that if Stallone did play Warhammer, why he chose Blood Angels over Catachans, you know, seen as though he played Johnny Rambo?