I just found out at imdb.com that Cesar Millan played himself in that episode. Their informations is usually right, so I'm not disputing it, but it sure didn't sound like him and I don't recall seeing his name in the credits (although it's quite possible I just missed it). I just figured Matt or Trey was doing the voice. Does anyone else know about this? Thanks!
I'm fairly sure that he did not do it. What makes you think IMDB's information is ever 'right'. As far as obscure trivia goes as well as unreleased movie, IMDB's information is to be taken with a grain of salt. Believe me- I speak from experience of running the Mortal Kombat 3 Movie Page and IMDB and its rabid userbase is generally the source of mant obnoxious rumors.
Anyways, I read somewhere that Cesar 'enjoyed' the episode, but it was further implied that he did not do the voice. After hearing the episode a second time through I'm 90% sure that is Trey doing the voice.
I think you're right. I did some googling and couldn't find any confirmation. There was a link to a Q&A page on Cesar's site where someone asked him what he thought of the episode, and he said he thought it was "hilarious." It's a good bet that if he played himself he would have mentioned it.
That's interesting about the IMDB. I didn't realize it was unreliable, even though I've never taken the trivia stuff seriously. After all, it's impossible to believe Mickey Rooney invented the hot water heater and that Broderick Crawford was a hermaphrodite. However, I've always found their casting info to be accurate as far as I could tell. Listing Cesar as playing himself in SP is the first mistake I've seen when it comes to that.