FINALLY PROVEN!! The Terrance Steadman theory

OK, so it's no great mystery, but I've argued with more than one of my friends that there have in fact been TWO SEPARATE ACTORS to play the role of Terrance Steadman on Prison Break. Initially, the role was played by John Billingsley for three episodes in the '06 season. His face was almost never seen, which is what makes this hard to prove without evidence exhibit b: Jeff Perry, who played 4 episodes spanning '06 and '07. Unfortunately, IMDB doesn't have a picture of Perry, so I had to go dig up my own. Hopefully we can all put this behind us and recognize how right I am.