It has been revealed The Celebrity Traitors will return on September 23 – after last year’s star Joe Marler leaked the date.The former rugby star joined Richard Osman and Marina Hyde for a live edition of their The Rest Is Entertainment podcast at London’s Southbank Centre on Saturday.Joe was offering his advice for this year’s contestants before he let slip the date the show will be back on screen.Joe said: ‘What is it, September 23, the next series?’ as Richard confirmed: ‘By the way, to point out it’s absolutely embargoed that it starts on September 23… the cat’s out of the bag isn’t it?’The BBC released the trailer for the hotly anticipated series last month, as host Claudia Winkleman left the star-studded line-up quivering in the teaser. Following Alan Carr’s win as a Traitor in last year’s series, this year’s celebrities include Maya Jama, James Blunt and Richard E Grant. The Celebrity Traitors release date has been leaked by Joe Marler and Richard Osman as they break strict embargo during live show He joined Richard and Marina Hyde for a live edition of their The Rest Is Entertainment podcast at London’s Southbank Centre as he said ‘What is it, September 23, the next series?’Richard explained he had spoken to some of the stars involved in this year’s series as he commented: ‘Sounds like it was quite intense,’ which Joe noted was very different to his series.Joe said: ‘I believe it was a slightly different emotion than our experience. Ours was very laugh-led, and everyone was sort of enjoying catching up, you know, pratting about to the point where they went, “Guys, we’re trying to play a game.”‘It’s not just for the laughs – “Oh, do you remember going to that party, darling?…”‘Whereas this lot really want it from the start, and then I guess they see how well the first series has gone and there’s a little bit of pressure on them to be like: “Oh I’d quite like a bit of that.”Maya and Jerry Hall are two of the biggest names leading this year’s cast as they join legendary actor Richard E Grant and comedian Romesh Ranganathan.Also heading to Ardross Castle in the Scottish Highlands are Michael Sheen, Miranda Hart, Ross Kemp, Bella Ramsey and James Blunt.Comedians Rob Beckett, Joe Lycett, Joanne McNally and James Acaster will also join, alongside Little Mix star Leigh-Anne Pinnock.The line up will be completed by mathematician Hannah Fry, broadcaster Amol Rajan, Coronation Street actress Julie Hesmondhalgh, prankster King Kenny, Industry star Myha’la, Heartstopper’s Sebastian Croft and My Mad Fat Diary’s Sharon Rooney.Meanwhile the new series marks Claudia’s return to the BBC after she walked away from her chat show The Claudia Winkleman Show after just one series. In the new trailer the celebrities gather in the pews of an eerie church, as Claudia asks: ‘A moment of silence for the celebrities gathered today.’ Maya and Jerry Hall are two of the biggest names leading this year’s cast as they join legendary actor Richard E. Grant and comedian Romesh Ranganathan Claudia Winkleman left Maya Jama, James Blunt and Richard E Grant quivering in the chilling teaser Michael Sheen and Maya Jama sit in the pews of an eerie church in the latest series’ trailer The camera then panned across a terrified Miranda Hart, Rob Beckett, Julie Hesmondhalgh, Bella Ramsey, Ross Kemp and Sharon Rooney. ‘Thoughts and prayers,’ said Claudia, before striding down the aisle as she added: ‘Who doesn’t love a dramatic exit.’ Funeral-style flowers can be seen behind Claudia, spelling out ‘RIP VIP’. Details about the new series are being kept secret, so it remains to be seen who Claudia will choose as her three Traitors.With this line-up proving to be the starriest yet, it was previously reported that bosses were forced to double their £1million budget in a bid to cater to the A-List contestants’ demands.In June, it was reported that producers of the show are ‘shocked’ by how the new series has unravelled after the original Traitors went on a ‘recruiting spree’.A third of the 21 stars are said to end up as Traitors in a huge twist no one saw coming. Insiders say the tactics caused a ‘thrilling shift of power’ to take place in the game which reached new levels of backstabbing and betrayal. It is said to be completely different from the first series of the celebrity spin-off which saw Alan Carr and Cat Burns stick together as Traitors all the way through the series after Jonathan Ross got banished earlier on.