Let's be clear: Kevin Butler, Sony marketing executive and general bad-ass, is probably not in Playstation All-Stars Battle Royal. Neither are Jay Leno, Jimmy Fallon, Randy Jackson, Nintendo's Shigeru Miyamoto, Steven Tyler or Reggie Fils-Aime as "The Reggintor."
Despite whatever rumors you may read, there's no way that Sony would bank so much on random talent and fan-based meme references. The truth is a lot sadder when the source of these names and characters (seriously, 'Super Miyamoto'?) come from the never-trusted source of casting information, IMDB.
Mainly, because users can put on whoever they'd like and then spend their time trying to take down other casting notices. Hence why Leno is supposedly "The Big Chin" and, in the most random inclusion, Thomas F. Lewis is playing himself. Most folks unfamiliar with the name will definitely know the voice and face.
In fact, let's just answer all those questions about him with a little song he plays called, The Question Song:
When there are more characters to confirm from Sony, we think we'll go with their press release instead of IMDB. There's no telling who'll be added next over there.