Lets see why the others can't be RJ

Brett Partridge = Leave the poor guy alone. He is dead! and even if he is alive even I could kick his teeth out. Look at him he doesn't even lift. Even in the first episode he was fascinated by the fake RJ. The real RJ would be disgusted by some random faker. Same voice? RJ ain't stupod. He change his voice lol to something gayish, Brett just happens to have a similiar kind of gay voice.

Bob = He got shot like 6 times in the back front of us lol. he is dead! He tortured random guys on Janes list to find out who RJ is.
Crazy twin plot? No way. Too late for that. This is ain't Lost lol

Gale = 100% no way lol. just look at him. Besides Jane is not going to announce on TV who is RJ. Jane wants RJ for himself. Jane will go up to RJ and shoot him and smile when RJ begs for mercy.

Bret Stiles = Way too old lol. Even a kid could brake his bones easy. He ain't RJ. Is he dead? Mayhaps.

Smith = lol he is way too fat to be RJ. He is like twice the size of RJ lol I can't believe that he is on the list.

Ray Haffner = He is a noob. Too stupid to be RJ.  no offense.
is he Dead? Mayhaps.


That leaves us with Thomas McAllister. He can fake his death easy. No body found. He has the same vainy hand as RJ in the promo s06e07. He could put up a fight easy. He would knock you out fair and square. He is smart. Fits the age as well.

 

Maybe a Randomer who is not on the list? No way. This ain't Lost.