Mark, 51 – who is a Chaser on the ITV game show alongside Shaun Wallace, Anne Hegerty, Paul Sinha and Jenny Ryan – insisted that "he would happily be strapped up to one of Jeremy Kyle's lie detectors" to prove that The Chase is genuine.
Speaking exclusively to Express.co.uk, Mark said: "I have never thrown a question, let alone a show and would happily be strapped up to one of Jeremy Kyle's lie detectors.
"Social media is great for people's immediate gut reactions but not for a more considered opinion.
"My guess is that people get caught up in the excitement of the final chase and it boils over."
GETTY • ITV
Mark Labbett has slammed The Chase 'fix' claims
Mark said he would happily take a lie detector test to prove the show is genuine
I have never thrown a question, let alone a show and would happily be strapped up to one of Jeremy Kyle's lie detectors.
Mark Labbett talks The Chase 'fix' claims
"We are a much loved family show which people care passionately about, so understandably emotions run high sometimes both on set and watching at home, especially in the last few seconds," he added.
The Beast’s latest comments come after he famously stormed off set in December when he lost a game and the quizzer – who previously bagged £32,000 on Who Wants To Be A Millionaire, as well as starring on numerous other shows – said that any of the other Chasers would have acted in the same way.
He explained of the incident: “I am the best in the world at what I do [over 300 wins worldwide], it's a big boast but it spurs me to try and be the best I can.
“You need a bit of swagger and confidence when you are facing four players with a head start on your own. As for bashing the set, I am staggered at the response. For me this is my sport and any sportsperson would completely understand my behaviour.”
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The Chaser also spoke out about the moment he stormed off set
Mark with The Chase's host Bradley Walsh
Mark added of whether or not he has witnessed any of the other Chasers acting in a similar manner: “We all care passionately. We have all put in a lot of work to get to our level of knowledge, and it is priceless to be thought of as clever by the public.
“So when you feel you have screwed up a game, it really hurts. All of us have had at some point a losing streak and one of the things you need to develop is how to cope with that mentally and dig yourself out of a slump. Easier said than done though sometimes.”
The Chase continues tonight at 5pm on ITV.