Filming on The Celebrity Traitors was paused after comedian James Acaster got "very anxious" on set.
The 41-year-old comic was visibly stressed during a scene at Ardross Castle, prompting fellow contestants to raise concerns with producers, who halted filming so that the crew could check on him.
A source told The Sun on Sunday newspaper: "The show is incredibly intense and during one particular scene at the castle, James became very anxious and panicked.
"Some of the other celebrities on the show spoke up and said cameras should stop rolling so he could calm down, and production were in agreement as well.
"Everyone looks out for each other and there is a proper sense of camaraderie. It was good for James to have a breather, as everyone felt it was for the best."
The source said the pause did not affect the outcome of the game but reflected the "passionate and tense" atmosphere on set.
A spokesperson for the show emphasised that the wellbeing of participants is paramount.
The representative said: "The Traitors is a unique and immersive game, and we recognise that taking part can be intense at times.
Catch up on all the latest Celebrity Traitors news here - Latest Celebrity Traitors updates including start date, lineup, new twists and more
"Our highest priority is always the safety and welfare of everyone taking part.
"Players are closely monitored and supported throughout by production, which includes a dedicated and experienced welfare team."
Mr Acaster is one of several comedians taking part this year, alongside Joe Lycett, Miranda Hart, Romesh Ranganathan, Joanne McNally, and Rob Beckett.
He told the BBC he believes the number of comedians raises suspicions among the cast.
He said: "There will be suspicions that it’s going to be at least one of these guys, that we might form an alliance if we’re not broken apart.
"I think we're going to be the first ones under the magnifying glass being looked at.
"Particularly at the beginning when you have absolutely nothing to go on.
"And then you consider that a comedian won last year with Alan Carr disarming everyone with jokes the whole time.
"He has tainted us all."
Mr Acaster joked that mathematician Hannah Fry could convince the group that statistically, at least one comedian is likely to be a Traitor.
He said: "Even though it could obviously easily be three people who aren't comedians.
"I don't know how it works out, but if maths turns against us we're in big trouble."
When asked about his chances of reaching the end, Mr Acaster said: "Anyone could get to the end.
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"You can avoid murder or banishment by simply not being respected enough to be seen as a threat.
"And I think I could very easily be seen as not a threat.
"Yeah, I could be there to the end.
"It’s anyone’s game really."
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