The Traitors' Season 3 cast, the majority of which are reality TV stars such as Gabby Windey and Tom Sandoval, has been announced by Peacock.

The Traitors is set to return for a third season with a new lineup of familiar faces on Peacock.

The competitive murder-mystery game will once again be hosted again by Alan Cumming.

The following reality TV shows will all be represented on the upcoming season of The Traitors: The Bachelorette, The Biggest Loser, Big Brother, RuPaul's Drag Race, Survivor, The Real Housewives franchise, Selling Sunset, Summer House, and Vanderpump Rules.

The 21 contestants appearing on The Traitors include former The Biggest Loser trainer Bob Harper, RuPaul's Drag Race star Bob The Drag Queen, Big Brother alum Britney Haynes, Survivor alum Carolyn Wiger, The Real Housewives of Dubai star Chanel Ayan, and Selling Sunset star Chrishell Stause.

Joining the cast will be Summer House star Ciara Miller, Big Brother alum Danielle Reyes, The Real Housewives of New Jersey star Dolores Catania, The Real Housewives of New York City star Dorinda Medley, Down to Earth with Zac Efron star Dylan Efron, and The Bachelorette alum Gabby Windey.

Former Survivor winner Jeremy Collins is also in the cast, as well as British Royal, Lord Ivar Mountbatten, and WWE Hall of Famer Nikki Garcia.

The Traitors' third season will also feature former Survivor winner Rob Mariano, The Real Housewives of Potomac star Robyn Dixon, actor and model Sam Asghari, Vanderpump Rules star Tom Sandoval, former Survivor winner Tony Vlachos, and Bachelor in Paradise bartender Wells Adams.

Set in a castle in the Scottish Highlands, 21 contestants will gather together to compete in a series of missions with the goal of earning a cash prize of up to $250,000.

"Hidden amongst the Faithful contestants are the Traitors, whose goal is to eliminate the Faithful and claim the prize for themselves," according to Peacock.

"Under the cover of darkness, the Traitors 'murder' contestants one by one, but if the Faithful can banish all the Traitors before the end of the game, they'll split the incredible prize."

But if one or more Traitors make it to the end, the winner or winners will steal all the money.

The Traitors' second season was the most-watched reality series debut on Peacock, and Season 1 of the show won an Emmy Award for Outstanding Casting for a Reality Program.
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The Traitors is produced by Studio Lambert with Stephen Lambert, Mike Cotton, Sam Rees-Jones, Rosie Franks, Jack Burgess and Tim Harcourt serving as executive producers. 
About The Author: Elizabeth Kwiatkowski
Elizabeth Kwiatkowski is Associate Editor of Reality TV World and has been covering the reality TV genre for more than a decade.