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James Acaster Stuns Celebrity Traitors by Unmasking Himself as a Traitor Before the Final

· · 7 min read
James Acaster performing stand-up at Union Hall in June 2025 (file photo via Wikimedia Commons)
Photo: Bryan Berlin / CC BY-SA 4.0 via Wikimedia Commons · James Acaster performing at Union Hall, 13 June 2025

James Acaster stunned The Celebrity Traitors on Thursday night by standing up at the Round Table and unmasking himself as a Traitor — then telling the table he had never wanted the role. Banished unanimously one night before the final, he leaves two Traitors still hiding among five Faithfuls.

There are exits, and then there is what James Acaster did on Thursday night. One episode before the final of The Celebrity Traitors, with suspicion finally closing in around him, the 41-year-old comedian stood up at the Round Table and told his fellow players exactly what he was — producing, in the process, the most extraordinary banishment of the series.

Acaster unmasked himself as a Traitor and was banished unanimously, becoming the third Traitor and the eighth player overall to leave the game. It was not a confession dragged out of him across several episodes of mounting evidence. It was a man who, by his own account, had been carrying a role he never asked for finally setting it down in front of everyone — and it changes the shape of Friday’s final completely.

The moment it turned

The unravelling began with Michael Sheen. The actor confronted Acaster over the “murder in plain sight” of Ross Kemp — killed by the Traitors using perfume bottles — and laid out the detail that mattered: when Kemp was killed, Acaster and Maya Jama were the only two players left in the library with him. It was the kind of calm, forensic accusation this format runs on, the sort that leaves no room to bluff, joke or charm a way past it.

Acaster did not try. Instead of spinning a defence, he told the table the truth — all of it. “I was made a Traitor without wanting to be,” he said. “I’ve had a unique experience on this that no-one’s had before, where I wanted to be a Faithful.”

He went further, and it is worth hearing in full, because Round Table speeches are rarely this unguarded: “When I came into this experience I told Claudia all I wanted to be was a faithful, and all I wanted to do is go around this castle and try and help the faithfuls as much as possible catching traitors. I’m really proud to say that’s what I’ve been able to do, under the circumstances. I am, reluctantly, a traitor.” The vote, when it came, was unanimous. There was nothing left to argue about.

A Traitor who never wanted the cloak

To understand why it landed so hard, you have to go back to how Acaster ended up in a cloak at all. He began the game as a Faithful — the role he had asked host Claudia Winkleman for. Claudia initially chose Maya Jama and Richard E Grant as her first two Traitors, and Acaster was recruited into their ranks later, against his own wishes. Everything that followed, he suggested on Thursday, flowed from that moment: a Faithful’s instincts trapped inside a Traitor’s job description.

It explains the strange double quality of his game. He was present for the crimes, as Traitors have to be, yet never quite looked like a man enjoying the deception — and in a castle full of performers, that discomfort was hiding in plain sight, much like the murder that finally caught him. The library detail did not create the case against Acaster so much as give the room permission to act on what many had clearly begun to suspect.

He is not the first Traitor this series to fall, either. Richard E Grant was the first player banished from the castle after revealing himself to Joe Lycett — an early sign that these Traitors would have a habit of giving themselves away. Acaster’s exit, though, was different in kind: not a slip under pressure, but a decision, made openly and on his own terms.

“Glad they caught me”

Speaking afterwards on the spin-off The Traitors: Uncloaked, Acaster sounded less like a beaten player than a relieved one. “I feel pretty good getting to episode nine, and now we’ve got a proper final on our hands,” he said. “With three Traitors, it would have been a foregone conclusion that we were going to win. Don’t get me wrong, I thought it was hilarious at one point that we were just going to walk our way to the final and win the whole thing, but this is much better, isn’t it?”

He said he was “glad they caught me” — and promptly tipped singer James Blunt, a man he described as “a man possessed”, to lead the Faithfuls to victory in the final. It was a generous note to exit on, and a telling one: even his parting prediction was an act of loyalty to the team he had wanted to play for all along.

Most revealing of all was his explanation of how he had coped. Acaster said the plan to reveal his identity “got me through” the experience, because seeing his fellow players have real-life reactions bigger than the game had made him feel bad about playing a Traitor. In other words, the confession was not a collapse at the finish line. It was the strategy that had carried him there — the knowledge that, one way or another, he would eventually be able to stop pretending.

Filming paused as emotions ran high

The evening took its toll in the room, too. According to The Sun, reported via Entertainment Daily, filming was briefly halted when Acaster became upset at the Round Table, with producers checking on the contestants before the banishment vote went ahead.

The BBC, asked about the welfare of those taking part, said: “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.”

It is a side of the show viewers rarely glimpse. The Celebrity Traitors asks well-known people to deceive their friends, on camera, for weeks — and the whole appeal of the format is that the emotions are real rather than performed. Acaster’s discomfort was, in the end, the story of his series: the game worked on him only up to a point, and when it reached that point, he was honest about it. That the production stopped to check on everyone before the vote is a reminder of the weight sitting underneath the entertainment.

Murder, banishment and a bigger pot

Acaster’s was not the only departure in a crowded penultimate episode. Actress Sharon Rooney was murdered by the Traitors, and comedian Joanne McNally was banished at the Round Table — three exits in a single night, cutting the castle down to its final seven players.

There was progress on the prize fund, too. Thursday’s mission added £5,000 to the pot, taking the total at stake in the final to £64,500.

The final line-up

Two Traitors remain in the game: Maya Jama — an original Traitor, in a cloak since Claudia’s first selections — and King Kenny. Against them stand five Faithfuls: James Blunt, Leigh-Anne Pinnock, Michael Sheen, Romesh Ranganathan and Sebastian Croft. Sheen, in particular, goes into the final with his reputation enhanced: the library case he built against Acaster was the moment the Faithfuls finally got one right when it mattered most.

The Celebrity Traitors final airs on Friday 30 October at 8pm on BBC One, and for once the arithmetic favours the Faithfuls — five against two, with the Traitors’ numbers halved at exactly the wrong moment for them. But Jama has survived since the very first night, and nobody left in that castle will be taking anything for granted. After Thursday night, this is a final the series has earned. Acaster made sure of that — by taking his cloak off himself.

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