Yeah, I saw that rerun too. I think the guy in the audition tape was real, and the guy who came on the show was an actor.
It's funny that this Martin Tikvah thing happens now, because I just was thinking it would be cool if they had a contest where the winner would get a 4-episode contract as a featured player and the oppurtunity to extend it, and people could vote for the favorite online or something. I think it would be cool. But that's just me...