I don't know why, but I'm really nervous and excited for season 6..I just hope Bruno gets it right, and the actor he chooses plays the part well. My main suspect is Gale Bertram, but I've probably suspected everyone at some point along the way, just like everybody else has. I pretty much have a theory for all the suspects but for some reason I'm getting more and more drawn to McAllister and Smith on the list, just because they were such strange inclusions. People say it can't be one of them because they've only appeared once, but it should be remembered that we had never even seen Timothy Carter before he was revealed and he proved extremely popular....As Heller said anything can happen!
Based on the trailers and gossip we've had for episode 1, I'm going to guess that Bob Kirkland will be the first name scratched off of the list. Roll on Sunday night, I cannot wait! :-)

'That plump, annoying FBI agent who appeared once in season five? No way!' I hear you say.

That's what I thought too at first. Let me explain...I'll start with a quote by Bruno Heller:

"Red John is like Waldo, lurking in the background"

Now most people assumed that Reede Smith only appeared in the season five opener.

Wrong!

In episode 5x18 guess who I saw in the BACKGROUND about halfway through the episode? Reede Smith

I'll have to give it to Bruno Heller, because he placed Reede Smith in a position where he was too far away to be easily noticed, yet possible to be picked up by the subconscious mind. But I, being observant, was able to spot him.

This intrigued me to investigate further to see if this was the only episode Reede appeared in. I discovered that he also appeared in 5x06, and - briefly - in 5x16.

Virtually unnoticeable to the average watcher of the series, Reede Smith - aka Red John - is, as Heller correctly put, "like Waldo". You have to look for him to find him.

Of course, this is no conclusive proof that Reede Smith IS Red John, but it is certainly strong evidence that might suggest so.

I have read the following question:

How did Lorelei know that Red John and Patrick Jane shook hands? It seems improbable that Red John told her "I shook hands with Jane". More probable that she SAW this. But the first time Lorelei featured was when she and Jane met at the bar in the episode "The Crimson Hat" (I think). From that point onwards until she told Jane that he and Red John shook hands, was there anybody on the list that Patrick shook hands with, in her presence??

Possible Answer:

Please watch 1st Episode of Season 3: in this Episode Gale Bertram was introduced. In the background there is a woman, who's face is hiding behind a camera. You never see her face. It is the only person you don't see the face of. I think this was no coincidence, dear Bruno!! ;o)))  The woman looks like Lorelai (it could be Lorelai). After that Bertram and PJ shake hands. She could have seen it. But that means, Gale Bertram is RED JOHN.

Another theory:

Why a fake Red John at the end of season 3? Because PJ met the true Red John just before. Fake Red John to cover true Red John!!! That would also mean, that Bertram is RED JOHN. 

By the way, I don't like the idea of Bertram as Red John.

My favorites:

Brett Partridge or
Sheriff Thomas McAllister :o)))

Did anyone else notice during the episode "There will be blood", when Bertram is talking to Kirkland right after he comes from behind the door where he was listening, he says "clearly he/she knows more than she's saying". He actually says "he/she". Ok you hard core mentalistas, please check it out and let me know your opinion on this.

Some people say Brett Partridge is so young to be the RJ, but the actor Jack Plotnick have 44 years old, so I think he is Red John!

  Hi Guys,
we know all that Red John seems to be one of the list of 7 suspects , even if i may be sure that Bob Kirkland is the reel Red John and have two "accomplices" Bret stiles and brett partridge but no matter who will be that serial killer , the important think i hope that one in the list choosen by Bruno heller, must be the most clever of the 7 suspects.