WASHINGTON — The hit Peacock series “Traitors” returns with an all new group of contestants in the Scottish Highlands.

Olympians, Housewives, reality show winners and a football mom are all heading to the castle for Season 4 of the Emmy-winning show.

Alan Cumming returns as host, welcoming 23 new contestants for another round of mystery and manipulation. This season’s players include Olympic figure skaters Tara Lipinski and Johnny Weir, Real Housewives stars Lisa Rinna, Porsha Williams and Dorinda Medley, and Big Brother champions Tiffany Mitchell and Ian Terry.

Donna Kelce, mother of NFL stars Travis and Jason Kelce, will also appear. Other cast members include K-pop artist Eric Nam, comedian Ron Funches and actor Michael Rapaport.

The season will follow the show’s usual format. Players are divided into the Faithful and the Traitors. As the Traitors secretly “murder” contestants each night, the Faithful must work together to uncover and banish them. If all Traitors are eliminated, the Faithful win the $250,000 prize fund. But if a Traitor remains by the end, they take all the money.

Peacock has not announced an official premiere date yet for the new season. Here’s the full list of contestants for Season 4:

• Natalie Anderson (“The Amazing Race”)

• Yamil “Yam Yam” Arocho (“Survivor”)

• Mark Ballas (“Dancing with the Stars”)

• Candiace Dillard Bassett (“Real Housewives of Potomac”)

• Ron Funches (comedian)

• Rob Cesternino (“Survivor”)

• Monét X Change (“RuPaul’s Drag Race”)

• Stephen Colletti (“One Tree Hill”)

• Maura Higgins (“Love Island”)

• Donna Kelce (mother to Travis and Jason Kelce)

• Kristen Kish (“Top Chef”)

• Tara Lipinski (Olympian)

• Dorinda Medley (“Real Housewives of New York”)

• Tiffany Mitchell (“Big Brother”)

• Michael Rapaport (actor)

• Rob Rausch (“Love Island USA”)

• Lisa Rinna (“Real Housewives of Beverly Hills”)

• Caroline Stanbury (“Real Housewives of Dubai”)

• Ian Terry (“Big Brother”)

• Colton Underwood (“The Bachelor”)

• Johnny Weir (Olympian)

• Porsha Williams (“Real Housewives of Atlanta”)