By KATIE HIND

Published: 00:30 BST, 6 April 2025 | Updated: 00:30 BST, 6 April 2025

It’s the reality TV phenomenon built around secretive behaviour and clandestine whispers – with the sneakiest of The Traitors thriving on their ability to lie to fellow contestants.

But programme chiefs have been forced to launch an internal hunt to uncover their own traitor after secrets about the show’s new celebrity spin-off series, including the star-studded line-up, began leaking out.

Bosses have gone to extraordinary lengths to conceal the identities of those due to appear, with only a tiny group of very senior producers trusted with the names, and military-style security measures planned for the set. 

But details of those participating – including Good Morning Britain’s Kate Garraway, former England rugby star Joe Marler and singer Paloma Faith – have appeared in the media, prompting an inquiry inside the production team.

Other leaked names include Stephen Fry, Olympic diver Tom Daley and journalist Robert Peston, with broadcaster Clare Balding and comic Alan Carr also reported to have been ‘approached’ by executives.

A show source told The Mail on Sunday: ‘You can understand the odd detail slipping out by accident, but it has got totally out of hand this series.

The Traitors' programme chiefs had to launch an internal hunt to uncover their own traitor after secrets about the show’s new celebrity spin-off series began leaking

The Traitors’ programme chiefs had to launch an internal hunt to uncover their own traitor after secrets about the show’s new celebrity spin-off series began leaking

Good Morning Britain’s Kate Garraway was rumoured to be one of the participants in the celebrity take on the hit show

Good Morning Britain’s Kate Garraway was rumoured to be one of the participants in the celebrity take on the hit show

England rugby player Joe Marler's name has appeared in the media in connection to the spin off

England rugby player Joe Marler’s name has appeared in the media in connection to the spin off

Singer Paloma Faith was also mentioned in the alleged line up for the show despite extraordinary lengths to conceal the identities of those due to appear

Singer Paloma Faith was also mentioned in the alleged line up for the show despite extraordinary lengths to conceal the identities of those due to appear

‘Everyone has worked so hard to pull together an incredible line-up for the fans, and it’s a huge opportunity to do something amazing for the BBC.

‘To see that someone internally seems so intent on ruining those surprises for some reason – let’s face it probably for their own gain – is very disappointing. 

‘There are a lot of questions being asked now about how this can be happening when so few people are told the names in advance.

‘Obviously there will be serious consequences for somebody if they’re identified as the mole. It would probably be the biggest act of treachery in the show’s history.’

Broadcaster Stephen Fry was rumoured to be 'approached' by executives

Broadcaster Stephen Fry was rumoured to be ‘approached’ by executives

Although he has now retired from diving, Olympian Tom Daley was allegedly asked to be on the celeb spin off

Although he has now retired from diving, Olympian Tom Daley was allegedly asked to be on the celeb spin off

Journalist Robert Peston could be trying to discover who is the traitor in the celeb spin-off while show execs hunt for their own mole

Journalist Robert Peston could be trying to discover who is the traitor in the celeb spin-off while show execs hunt for their own mole

Broadcaster Clare Balding may be joining the line up in Scotland this month for the new Traitors series

Broadcaster Clare Balding may be joining the line up in Scotland this month for the new Traitors series

Comedian Alan Carr could also be one of the celebs who have to travel secretly to film The Traitors this month

Comedian Alan Carr could also be one of the celebs who have to travel secretly to film The Traitors this month

Filming for the forthcoming series, which is hosted by Claudia Winkleman begins this month at Ardross Castle in Scotland. 

The celebrities will all travel separately by planes, trains cars and even boat to stop their paths crossing and prevent the public from putting two and two together.

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Hunt for the traitor in The Traitors’ midst as celebrity secrets leaked

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