The only guest stars from the list in the episode 'Red John' are the actors for Gale Bertram and Reede Smith..........
I'm not sure what to believe anymore. The list has been focused on too much it can't be real yet I feel it can't be fake because it has been focused on so much...
But I'm about 90% sure Red John is someone we've seen this season but since Ray Haffner, Kirkland,Stiles and McAllister are missing from the episode where he is revealed I doubt it'll be them.
But I also seriously doubt it's either Bertram (because in Strawberries and Cream, him and O'laughlin were part of a ploy to find RJ's accomplice and if he was RJ he would've figured out the trap) or Smith (who was too young to have tortured and killed two people in 1988).
But what recurring actor do we have that can't be eliminated? There's CBI Karl, that's very similar to CBI Ron that someone has talked about here somewhere I think (?), and he is the only other recurring actor returning in the episode Red John. But he might've come a little late to be Red John and he's more of a technical advisor than actor so I don't know if he could really pull off the role that is Red John but we never know.
Other actors returning this season are Aunjanue Ellis (Hightower) and also the guy that plays Jason Cooper.
I was actually thinking a bit about Jason Cooper. He was forgiven awfully fast by Brett Stiles when he betrayed him don't you think? And we know that Stiles knows who Red John is.Could it be for that reason that Stiles didn't get rid of him immediately? Cooper does get an awful lot of respect for such a scrawny man. And we all know serial killers tend to be rather pathetic people. The only thing bugging me is someone at the visualize church would probably have recognized him if he was the 'kid' painting the face on the barn. Also would Red John really stand to be someone's understudy? Or is that precisely why it's such a good disguise?
Also there's Richard Haibach (suspect in San Joaquin Killer case) coming back for some reason but it would be kind of a stretch for Red John to be such a sad, lonely character that appeared in only one previous episode, I think.