Absolutely J&G.  In the very beginning of GH I wanted to believe and then as things proceeded I sadly agreed yes to at least Grant.  It didn't take long to say yes to Jason.  He can't be that gullible with Grant even though at times he seemed annoyed.  Perhaps he was annoyed that Grant was either striking out on his own and not passing things by him or he told him not to do things but Grant did them anyway.  He's the stronger personality of the two and with his machismo, has a lot to lose if things don't go as he plans.  I really would like to say no to everyone else but the odds are….  Although I don't think Kris and Amy are, hmmm, what's the word?  Well, let's just say, I don't think so.  Brian – yes, Donna – yes, Britt - yes, Joe – yes, Steve – yes, Tango – probably (it's the magician thing).  Crew – yes for obvious reasons.  Looking back on what I just wrote, I'm still puzzled by Tango and why I just said probably.  For some reason, even with everyone else I said yes, it seems to put him in the line of fire but I have a hard time saying yes outright.

Ironically, and please no groaning here, the one person I would say no to was Andy.  As much as he got under the skin of a lot of people, love him or leave him, I think he was just one very enthusiastic individual who wanted to believe with all his heart.  When he went into that lighthouse so excited to be there and went on and on about the documentary he saw from the Japanese crew, I actually felt bad for him that his dreams were dashed.  It was like watching a kid open a package on the holidays and the box has all the markings of exactly what he wanted but then when he finally gets it open, it was just a box used to hold something else.  I think that is why Andy is not around anymore.  He didn't quite "fit" the box.

dr_peter_venkman said:

The film crew is a tough one. They appear so infrequently that I find it impossible to tell. I think that some of them definitely are accomplices to the aforementioned shenanigans.

I may be forgetting something but I can't recall anything that leads me to believe that Steve and Tango have faked evidence.

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I think the film crew is "in on it" in the sense that they could see something blatent and not report anything – that's their job.  Since they are anonymous and interchangeable, they have no stake in the success of the show other then possibly being chosen for future episodes,  but if found out interfering with what they are shooting, their professional career is basically shot.

In other threads I've mentioned Steve as being a prime suspect for setting things up as he goes around touching stuff. This season he seems to be keeping hands off, and GEE, wires don't fall off alarm bells, firewood dosen't fall from fireplaces, rocks don't fall from nowhere, papers don't fall from boxes, children's talking books don't start by themselves …  

The only thing caught on video is a camera that HE just might have setup seen moving, and HE just might have been the one to check it and say it was too tight to move on it's own.

… and don't forget the door that swung open " by itself" just after he was playing with it – If it had stayed stuck for a few minutes after they were gone, the next investigators  would have reported a ghost – they might have even caught it on camera. 

Alicat–that's an interesting "yes" list.  Mine's not quite that long.  In fact, I'd like to know what others think about who might be hoaxing (as opposed to just knowing about it and keeping quiet).  Here is mine:

Jay and Grant (the latter much more than the former), Britt, Steve, Tango (he's a maybe to me also.  He just seems so naive at times.  He might simply not be capable of pulling something off.)  Kristen-I don't think she would have a problem with hoaxing.

Brian–I see him as a prankster, not a hoaxer.  Actually, when he went with GHI and didn't have Jason breathing down his neck, he showed himself to be very enthusiastic and brave.  I'll never forget how, after the first episode of GHI aired, he went on his MySpace, listed his mood as "anxious" and was asking everybody to write what they thought of him and the show.  Don't think he would hoax.

No:  Andy.  I agree 100% here with Alicat.  Andy was the best debunker on both GH and GHI.  Highly intelligent and used his brain to think of any possible earthly explanations for evidence.  Also very gung ho when it came to investigating.  I can remember the nasty looks Jay used to throw his way, which I have put down to jealousy and Andy's skills being better than his.

Joe Chin-Simply can't see Joe doing anything.  Although on the quiet side, he appears to be pretty serious and honest.

Kris-she's an actress, but not a hoaxer.  She and Amy are put there to provide the eye candy and scream factors.

Donna-Having read a lot of Donna's MySpace postings and the entire impression of her website, I think we are dealing with an honest person here.  Just my opinion, but I believe she could see which way the wind was blowing and left in disgust.  Her Crohn's disease was used as an excuse to give the public, but to me Donna simply refused to go along with any chicanery.

Remember Lisa Dowaliby?  I think she was an honest person also.  Maybe I'm prejudiced because she's a vet tech who loves animals-I have a soft spot for those people.  But she didn't last long either, and I simply can't see her as a hoaxer.

Again, all the above is IMO.

I wonder if they go into some areas with some "just in case" plans in the event nothing happens?   The collar-tug, for instance.  Hey, if nothing being found, you can do. . .tugs, touches, knocks, black masses (never caught on camera), "I got pushed down by a ghost" type of things? 

For the most part not coordinated, like at 11:45 pm Grant you get pushed down.  Midnight, Jason you chase a black mass.  They do it spontaneously to make it look more real, camera crew caught off guard as well as team members. 

Link to case theft.  A few people in the comments section thought it was Brain also.

http://www.youtube.com/watch?v=SEYJ8qIdeGo&NR=1

I was still at the stage of the show where I believed everything!   Guess it was used to showcase the fact that Steve was a police officer.  If I am not mistaken, they all still had their day jobs at this point.  If it was Brain, at least it was not faking paranormal evidence. Unless, he was the dark figure 'captured' at East State.