How is Frank Oz not an actor? Voice of Fozzie, Yoda, Grover, Bert, The Cookie Monster, Miss Piggy, Animal, Sam the Eagle, and many more. He's even been in a few movies in person. Sure, primarily a VOICE actor, but no question, an ACTOR.
I had from the OP an impression that an actor was one whose face has been on a screen, not a voice actor or pupeteer, etc. :shrug:
What about....Magnus ver Magnusson! He's burly, strong, a star (in Iceland and a niche in other places), and might be a bit cheap, too. Besides, they could just use his body as a template for a Norse God equivilant in Skyrim and save money! :nod:
http://en.wikipedia.org/wiki/Magn%C3%BAs_Ver_Magn%C3%BAsson
http://cdn.thecampussocialite.com/images/magnus.jpg