- I think one of the shows favourite couples was definitely Rigsby and Van Pelt, is there any chance they're going to get back together in season 4?

Very much so, I think it's one of those moonlighting scenarios where you bring a couple together and it's like 'where do you go from there?' And they (writers) rushed it together very soon and I think they were then faced with the creative problem of, no one wants to watch a drama and see all happy families, so ever since then they've (writers) been finding ways to obstruct it, but there's a lot of tangible feelings between the two characters and I think towards the end of season 3 now you see that the wedding between Van Pelt and O'laughlin doesn't go quite as smoothly as we'd hope.

That will open up in season 4 a real possibility for Rigsby to check in with himself and see where he's up to in terms of his affections for her (Van Pelt) and for her to say, he is brilliant, he is handsome and I do want him after all (laughs).

- You mentioned Red John before, I've heard in the season finale his mole is uncovered, is that true?

Yes the mole in uncovered. Well, there's two massive things really, the revelation of who's been working within the CBI for Red John and also a confrontation, for the first time, between Patrick Jane and Red John.

- So we will actually see Red John?

You actually physically see him (laughs), and we have an incredible actor playing him, a very well known actor who I thought was a genius piece of casting. It's a fascinating moment in season 3, I'll put it this way, when we came to the end of season 3 we actually had to ring the creator and say "how are we able to do season 4?" it's literally that much of a cliff-hanger.

Jane does something so out of character, so stupendously left field that it will leave you as wondering how we will pick up in season 4.

- I heard that you didn't initially plan to be an actor but that you wanted to be an accountant is that true?

I didn't want to be an accountant, I found myself being a banker which was a bit different. I went to university and I was going to do a PHD in the states but I didn't get the funding for it so I had two years where I had a bit of a wobble and didn't really know what I wanted to do and I ended up working as a banker.

I probably did more acting in that job than in acting because I literally didn't have a clue what I was doing. After two years they went "you don't have a clue what you're doing, do you?" and I went "no" and so they let go of me, but fortunately that allowed me to earn enough money to put myself through drama school.

I thought if I'm going to be an actor, I don't want to patronise the acting profession, I want to take it seriously and if I want to be an actor, I'm going to train and so I trained for three years at RADA (Royal Academy of Dramatic Arts) and then found myself acting.

- Are there any other professions that you would like to try your hand at?

I would have loved to have been a chef, I love cooking and I had a dream job a few years ago I was on a show called Kitchen Confidential and I had such a blast doing that because it was basically just, me playing a chef and I was like "oh what's wrong with that, it's brilliant!" and they had this amazing thing where they would take whatever slop we would cook up and turn it into something beautiful. We would be roasting some mushrooms, frying and burning everything and they would go "Tada, aubergine on a bed of wild saffron rice" so that was all good.

I had fun doing that, I think it's just possibly because I'm allergic to hard work so I couldn't be a chef, the hours the guys work, they're like rock stars. A friend of mine is a chef in Bali and another friend said "god, he's like brad Pitt" and I said "yeah, I think he's more like arm Pitt" 'cause you know, Brad Pitt would be a bit of an over statement.

- You were in Terminator the Sarah Connor Chronicles, that must have been worlds apart from your role in the mentalist? How did you like playing that role, do you like having variety?
 
How did I like playing an indestructible robot? Yeah it was alright, yeah (laughs). It was a bit limiting as well, I had the chance to go on a do the rest of the series and I didn't just because I felt like I didn't want to become robot of the week.

I think the genius of those movies was that they were an elevated chase sequence and every movie kept you on the edge of your seat but you knew it was a very reductive formula. At the end of the day John Connor would either get away or wouldn't and the robot would catch up with him. In terms of a series I wasn't sure how long that had legs for.

I got offered the chance to be part of generation kill with the guys who did The Wire which is, as far as I'm concerned, is as good as TV gets. I jumped at the chance to play a human being as opposed to a robot, I thought that would be more interesting as an actor. But it is quite nice to be run over and shot at and get your head blown off and just put it back on and carry on, that was quite fun (laughs).

 - Are there any films you wish you had been cast in, any film, any time?
 
Any roles I wish I'd been cast for? I've done all the table reads for Johnny Depp as Jack Sparrow for all the pirate movies, because he's just been doing other stuff and I just love the whole Jack Sparrow thing he's got going on, it is just genius and I just think he has so much fun with it.

The second time I did the table read I actually joked with Gore Verbinski and all the people doing the table read, I was like "fortunately, the guy who's playing this hasn't done anything with this role, so in carte blanche I can do anything I want with it really, erm I can't remember his name, Geoff Depp, John Depp so, sad that he couldn't be here but just enjoy my take on the character."

I think he just had so much fun doing that and it's very seldom you see something truly creative become truly commercial and I love that. I think he's doing something really out there, really left field but it's also a massive, massive business that's doing really successfully, so good on him.

- Are there any particular actors you'd like to work with in the future?

Oh my goodness me, Daniel Day-Lewis, huge huge fan of his. I've always loved his philosophy on acting, he always talks about returning to a state of play.

He said that before he does a role he goes and watches children play because as adults, I think we learn inhibitions, we learn all the things we're not supposed to do and kids are so uninhibited and completely free and I think that's an amazing quality to have.

I think that state of play, it's important to return to because you find yourself getting embarrassed or inhibited doing things with a self-consciousness or external awareness, you're already making judgements on your character and you're already sort of dead in the water so he's a huge role model of mine. I wouldn't mind his career, that would be alright (laughs).

The Mentalist Season 3 is out on Blu-ray and DVD on 10 October 2011, courtesy of Warner Home Video.

FemaleFirst Cara Mason