You might have noticed that here at Digital Spy we got a little bit obsessed with ABC's new murder-happy reality show Whodunnit, and it's no secret that we're feeling a little bereft now that the first season is over. In our grief, we got on the phone with Gildart Jackson - also known as Rue Manor's very own butler Giles - for a bit of a Whodunnit postmortem!

Read on to find out what he thought about the winner and the killer (so, spoilers), how he responded when we pitched Whodunnit In Space, what he had to say about Giles getting drunk, how he reacted to Ronnie and the trained monkeys, if he's really a limbo expert and much more...

Have you heard anything about a second season yet?

"Nothing yet! Actually, when we get off the phone I was going to call Anthony [Zuiker], the big chief of the show, and see what he's been doing. He's great. He's the kind of guy who's never going to let anything die. Not that the studio has intimated any which way. They had a high end and a low end of expectations, and I think our numbers were nearer the lower end. We're still within the range of being able to be picked up. I mean, I think we're going to get picked up. I'm here in Vancouver shooting a TV show, and people are stopping me on the street saying, 'Hello Giles!' So that means people are watching it. Who knows how these things really work? But I feel another season, more people would watch. And it didn't do badly at all, it did 3.5m or something like that... So my fingers are crossed. Long answer, but: good question, no word, my fingers are crossed!"

Do you think they'll show Whodunnit in other countries?

"Of course, the cat's out of the bag somewhat right now about who wins and who the killer is. I don't know whether that negatively affects it. I feel like that was part of the fun of the show - everybody guessing - because everybody I would talk to would be like, 'Tell me who the killer is!'"

My favourite contestant was Cris, but I never would have thought she was the killer. Did you get it right?

"No! I completely got it wrong. I specifically asked the producers not to tell me because I wanted to be able to stay in character and suspect them all, and at various times I suspected everyone. Initially I was absolutely convinced that it was Don. I actually ended up liking him a lot, but he really comes off as a blowhard. I was sure he was the guy. And I was actually even sort of pissed at the producers for picking somebody who was so obviously the guy! And then suddenly he got killed and I was like, 'Oh, okay, they're cleverer than me'. No, I had no idea. Sheri was obviously a plant - everybody knows that, the first girl to get killed - so I thought, 'Oh, it's pretty clever of them to do a woman as the plant'.

"I was expecting the plant to be a man, because I thought there'd be a stunt and I thought that we would have to get a man doing a stunt, but it was a woman doing a stunt. I thought, 'Oh, that's good'. And then to me it seemed obvious again - they must have really thought this through - that it would be therefore a man. One woman stooge, one man stooge. And they got me again! Cris - she was just too obvious to be the bad guy. And I never suspected her. Actually, when I walked into that room - because I didn't know until I walked into that room and I saw Kam and Cris - I think I was told that the one furthest away from me was going to be the winner and the closer one was the killer. And Cris was looking at me with a big s**t-eating grin on her face!"

There was a moment when you said to her, 'You've never had a scared card - that's interesting'. So you didn't know at that point that she was the killer?

"No! That was an improvised line. I was standing there and I was handing out cards, and there were a few people who hadn't received a scared card. And I thought, 'I want to say something about that', and I knew the producers could cut it out if they didn't like it. But I picked Cris to say that to because I thought, 'Well, I'm least likely to be putting my foot in it, because I know Cris isn't the killer'. So I said it to her, and of course it's amazing how everybody's mind works. Because when that played, somebody came up to me and said, 'I thought Cris was the killer but you asked her that - they'd have never have put that in if she was the killer!' The brains behind the show are very smart. Anthony's a very clever guy."

How did you feel about Kam winning the show? He definitely played the game.

"Yeah. I think that he was the smartest one. I think he was, in the killer's own words, the most worthy adversary. He played the game, he was strong, he dissected the other group and he very nearly got killed himself when they were stronger, but didn't. He was lucky, because he got the killer on his team, and that is a help. She wasn't helping him behind the scenes, but she was doing her killer stuff and she can't be killed, so ultimately he ended up with more of a majority. I suppose she could have played some trick on him, but he had to do well in the stating of the case.

"What many people don't know is that when the contestants state their case, they not only do it in that room which is a fun thing, where everyone gets to see their weird things and their thought that there's a monkey, but they then have to come out of that room and complete a multiple choice questionnaire. It really is a strict game. The person with the worst score on the questionnaire is the person that gets killed. The two people with the two worst scores are the two people who get 'scared' cards. So I believe the time when there were three - Sasha, Geno, and Dana, and Sasha and Dana were killed, they were both killed because they got the same score. It really is a game, and Kam really was up in the charts all the time except the episode on horseback, where he almost got killed."

Some people pointed out that Lindsay named Cris all the way through but didn't win - do you think that's fair?

"Yeah. The game wasn't who can identify 'whodunnit', the game was who can be the best adversary. The killer wanted to discover the most worthy adversary. It's interesting how most people started trying to pick somebody of their own sex. This macho standoff - Geno, the tall handsome guy, he was vying against Kam. And Lindsay and Cris were standing off at each other. So yeah, I don't think she should have won because of that - she should have won if she'd won the challenge."

I don't know how you kept a straight face during some of Giles's odder moments. Did you find that tough at all?

"Yeah, I did! I'm an actor, and what you usually do, unless you're a special kind of actor, is you go in and out of character and when you're not shooting, you go and put your feet up and answer your emails and all that stuff. Well, I decided to stay in Giles. When I arrived I put the costume on, I stayed in Giles, I walked around the place, and I only ever talked to the contestants in character.

"Giles makes these peculiar comments and I didn't crack up. The time I got closest to it was coming out for the luau. Every time you go on, it's a bit like you're going on stage. It's live! I mean, there are a bunch of cameras around, but you don't want to do it again. You want to give the contestants the information and you want to make it real so we can shoot their real reactions to what's going on. So a prop guy thrust into my hand this drink, and as I was walking out of the kitchen I thought, 'Oh, well, I probably should be drunk'. So I played this scene drunk off the bat, and it was very amusing. They didn't have room to put in some of the lines, but there was a whole bunch of whispering among the guests - they were like, 'Oh my God, Giles is drunk!' By this time, they were so far in it that Giles was Giles to them.

"When we finally finished that last night, we all gathered around and the show was done, and Anthony said, 'I'd like to give a special thank you to Gildart'. And all the crew started to clap, but the contestants were like, 'Who?' And then they realised and they really started screaming. They thought I was Giles! It was very satisfying."

It's funny you brought up the Hawaiian party because that was my favourite Giles moment, I think. I have to ask - are you really good at limbo?

"Er no, I'm not good at limbo! I don't even remember how far down I got! The key was I had to give Geno my coat, so yeah, no, I don't think I'm very good at limbo. I have a memory in my brain of seeing Jim Carrey do a standup act when he literally bent himself double backwards. I mean, he is remarkable. And he did this thing and he bent himself double backwards, and I thought, 'I can do that!' So that was my effort at that. Not highly successful!"

I loved Giles's terrible puns, as well. Did you have any favourites?

"Oh, God! Literally, there were thousands of them. Anthony just dreams these suckers up. Lots of them were in there and lots of them got cut out because of time constraints. You know, I think I like the death ones, when I make a bad pun about somebody who's just died!"

Yes! Because all the contestants go, 'Urgh...'

"Yeah, exactly! And it sort of adds a layer of verisimilitude to the thing. The show is a real balancing act between serious and camp, and it's intended to be. It's absolutely intended to be a show that you sort of love and you go 'urgh' and you go 'hahaha', and then you're sort of intrigued by the contestants and their backstabbing. All of those elements in there have to find their level - one of which is Giles's character and Giles's bad puns and his leading everyone through. It was satisfying as we were going along to hear from people that they were getting it.

"I think initially it's not as easy as turning on a procedural television show and saying, 'Oh, I like procedural television shows', or turning on a new reality show and saying, 'I like reality shows, what's this one going to show me?' You've got to sort of get into it, and that's I think why, if we get to do it again, it's one of those things that will grow with word of mouth. I really think it is, and I think when we go again - hopefully - people will be charged to see, 'Oh my God, who's the killer this time?'

"A lot of people I know who watched the show watched it communally. It's not with other people in the house, but on their cellphones talking to their friends, texting their friends, 'Can you believe somebody did this?', that kind of thing. It very much is an interactive show, and I think that if we were to do it again, I'd love it to be that the viewer can actually go into the morgue [online], and in real time examine the body and get the clues for themselves, something like that. The world is our oyster for this thing if we get to go again."

Did it surprise you that people on Twitter thought that the contestants were actually being murdered?

"Yeah, it very much surprised everybody! Ultimately, at the end of every show, the contestant comes back in their death garb and says, 'It was a great way to die, I'm sorry to be leaving the show'. They had shot that, but they put that in realising that some people felt we had really killed people. And then we added that line to the finale where I say, 'Some people even believed that people had really been killed'. Yeah, it was surprising!"

There were moments that it's going to be hard to repeat, like Ronnie and his trained monkey theory. What did you think of that?

"[Laughs] It was great! You know, I don't think that is hard to repeat. I think that you put a bunch of people in this scenario and some weird s**t happens. I think that people will be more savvy on how to play the game. I think if Kam had had somebody who was able to challenge him on the strategic front, mentally, some even more weird and devious stuff would have happened. So I feel like yeah, that sort of stuff is definitely going to happen. You think back to the first one - Dontae kept on saying she'd drowned! Which is a bit like the monkey theory, except that we didn't know Dontae enough to be fully amused by it. But yeah, Ronnie's monkey theory was great."

You can kind of see where he's coming from, given that the murders were so insane. I loved the mountain lion - especially Giles and his rifle! Do you have a favourite death?

"Well, I think just the spectacle of Dontae being on fire was probably my favourite because we were all standing there, and 'Dontae', really just on fire, dived into the swimming pool. And that was also the first real death of somebody that they'd been hanging out with all day. That was shocking, and it was very real, because it really happened, and that was the one that sticks in my mind."

If there is a second season, do you think it would be back in Rue Manor? My friend and I were talking and we were saying you could have it anywhere - you could even have Whodunnit in space.

"Yeah - I love the possibility of doing it anywhere. I'm sure that we'll do it somewhere else. The possibilities for this thing are endless if we get enough people watching. In fact, Anthony has written two books that I have audiobook narrated for him. One of them is set on a tropical island and one of them is set somewhere else. An East Coast kind of thing, an Italian villa, as you say, space. What a great idea - that would be hilarious! Like on the deck of the Starship Enterprise! That's pretty funny, actually - set it in space!"

I bet you're pulling for a tropical island, though.

"Yeah! I'd like the Barbados venue - that would be amusing."

I liked that all the contestants had kind of relevant jobs, like homicide detective or crime reporter. But I heard a couple of rumblings about a potential celebrity season. Do you think that would work?

"I haven't really heard those murmurings. If it happened, it would be great. I think my preference would be to do it again as is, but if we do it again with celebrities that would be great too, and that might raise the profile again and get more people and therefore we could do it again. There was something about having a bunch of people, some of whom were professionals and bested by an airline stewardess and a beauty queen that was very fun and levelling.

"If it was a celebrity thing, God, the opportunities are endless. The celebrities would have to take the game seriously. All of the contestants on the show that we just had really took the game seriously because a) they wanted to be on television and b) they wanted to win $250,000! And there might be a tendency to be slightly flippant about and comment about the show, whereas all the contestants on the show we just had were really into it. So I think the only requirement that I would see in the contestants is that they really were sort of gung-ho individuals who really wanted to play the game, and then it would be good."

You're filming Supernatural in Vancouver at the moment. What else have you got coming up, or are you going to have a little break?

"Well, you never really know as an actor. It's really what's happening with the next audition. I don't have anything coming up immediately. I'm going to England in September, I've got a couple of audiobooks I'm narrating at the beginning of September. But the fun part of this job is that you're only an audition away from going to Vancouver or being Giles!"

Whodunnit aired on ABC.

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