The Traitors line up refers to the carefully selected group of contestants who participate in the hit psychological reality series The Traitors, where a small group of “Traitors” must “murder” fellow “Faithful” contestants to win a cash prize. In the most recent 2026 iterations, the UK Series 4 line up featured 22 civilian contestants, including mother-daughter duo Judy and Roxy Wilson, while the US Season 4 transitioned to an all-celebrity format featuring stars like Lisa Rinna and Rob Rausch. Typically, a line up consists of 20 to 24 individuals chosen for their diverse backgrounds, strategic minds, and ability to navigate high-stakes deception.
The Traitors UK Series 4 Line Up (2026)
The fourth British series of The Traitors premiered on BBC One on January 1, 2026, hosted by Claudia Winkleman at Ardross Castle. This lineup was notable for featuring 22 civilian players and a “Secret Traitor” twist that kept the Faithful guessing longer than in previous years.
The series concluded on January 23, 2026, with a dramatic victory for the Traitors. Rachel Duffy and Stephen Libby managed to survive until the final episode, successfully deceiving the remaining Faithful to split the grand prize.
UK Series 4 Contestant Table
| Contestant | Age | Occupation | Result |
| Rachel Duffy | 42 | Head of Communications | Winner (Traitor) |
| Stephen Libby | 32 | Cyber Security Consultant | Winner (Traitor) |
| Jack Butler | 29 | Personal Trainer | Banished (Finalist) |
| Faraaz Noor | 22 | Internal Auditor | Banished (Finalist) |
| Jade Scott | 25 | PhD Student | Banished (Finalist) |
| James Baker | 38 | Gardener | Banished (Finalist) |
| Roxy Wilson | 32 | Recruiter | Murdered |
| Matthew Hyndman | 35 | Creative Director | Banished |
The Traitors US Season 4 Celebrity Cast (2026)
The American version of the show, hosted by Alan Cumming, returned for its fourth season on January 8, 2026. Following the success of Season 3, the US lineup continued its “All-Celebrity” trajectory, pulling high-profile personalities from diverse sectors of entertainment and sports.
The Season 4 lineup was headlined by reality TV royalty Lisa Rinna and Candiace Dillard Bassett, alongside sports figures like Donna Kelce. This season also featured the return of Rob Rausch as a Traitor, who ultimately won the season after a masterful display of social manipulation.
Notable US Season 4 Contestants
Rob Rausch (Winner): A veteran of competition reality who navigated the game as a Traitor from the beginning.
Maura Higgins (Runner-up): A fan favorite who nearly sniffed out the Traitors but fell just short in the finale.
Candiace Dillard Bassett: A former Real Housewife who brought high-intensity gameplay to the Round Table.
Donna Kelce: The season’s “Secret Traitor,” whose maternal image served as the perfect cover for her clandestine activities.
The Traitors Australia Season 3 Reboot (2026)
After a brief hiatus, The Traitors Australia returned in 2026 with a complete overhaul. The show moved its filming location to Castle Claremont in New Zealand and introduced Gretel Killeen as the new host, replacing Rodger Corser.
The Australian lineup shifted from a civilian-celebrity mix to a “Celebrity All-Stars” format. The cast featured legendary Australian Survivor winner Shane Gould and Olympic athletes, creating a highly competitive atmosphere where game theory and physical stamina played larger roles than in other regional versions.
Australian Season 3 Key Players
Shane Gould: An Olympic gold medalist and Survivor legend known for her quiet but lethal social game.
Rhys Nicholson: A comedian and judge from Drag Race Down Under, providing sharp wit and strategic observations.
Cam Merchant: A former Married at First Sight participant who utilized his public speaking skills to lead the Faithful.
Tully Smyth: A veteran of Big Brother Australia who was cast to bring chaotic energy and unpredictable alliances.
Psychological Profiling of a Traitor Line Up
Producers meticulously craft the Traitors line up to ensure a balance of personalities that will create natural friction and compelling television. The 2026 UK series emphasized “hidden relationships,” casting mother-daughter and dating pairs to test the limits of loyalty.
The “Secret Traitor” mechanic, most notably used with Fiona Hughes in the UK and Donna Kelce in the US, changed how the lineup interacted. This role required the contestant to act as a Faithful even to their fellow Traitors for a period, adding a layer of meta-deception that had never been seen in earlier seasons.
Practical Information and Planning
For fans who wish to track the show or potentially apply for future lineups, here is the essential logistical information for the 2026/2027 seasons:
Broadcast Dates: UK (January), US (January), Australia (Mid-Year 2026).
Casting Portals: Applications typically open 6 months before filming via the BBC (UK), Peacock (US), and Network 10 (Australia) websites.
What to Expect: Applicants must undergo rigorous psychological testing and background checks to ensure they can handle the mental stress of the game.
Filming Locations: Ardross Castle (UK), Castle Genevieve (US), and Castle Claremont (Australia/NZ).
Prize Funds: Up to £120,000 in the UK and $250,000 in the US and Australia.
FAQs
Who won The Traitors UK Series 4 in 2026?
The series was won by Traitors Rachel Duffy and Stephen Libby, who shared the prize fund after successfully banishing the remaining Faithful in the finale.
Which celebrities were in The Traitors US Season 4?
The lineup included Lisa Rinna, Rob Rausch, Candiace Dillard Bassett, Donna Kelce, Mark Ballas, and Maura Higgins, among others.
Is there a new host for The Traitors Australia 2026?
Yes, Gretel Killeen replaced Rodger Corser as the host for the 2026 Australian reboot.
Can families compete together on The Traitors?
Yes, the UK Series 4 featured a mother and daughter (Judy and Roxy Wilson) as well as a dating couple (Ellie and Ross), though their relationships were kept secret from other players.
How many contestants are in a typical Traitors line up?
Most seasons feature between 20 and 24 contestants, which allows for 12 episodes of gameplay including murders and banishments.
What is a ‘Secret Traitor’?
A Secret Traitor is a contestant who is part of the Traitor team but is not initially revealed to the other Traitors, requiring them to play a double-blind game.
Who was the oldest contestant in the 2026 lineups?
In the UK, Ben (66) was the oldest player, while Lord Ivar Mountbatten (62) and Shane Gould (69) represented the older demographic in the US and Australian versions.
Are the Traitors selected by the host or the producers?
While Claudia Winkleman and Alan Cumming perform the “selection” on screen, the Traitors are strategically chosen by the production team during the casting process.
Can a Faithful become a Traitor mid-game?
Yes, if the Traitor numbers dwindle, they are often given the opportunity to “recruit” a Faithful, who must choose to join them or be murdered.
Where is The Traitors US filmed in 2026?
The US version continues to be filmed at the iconic Ardross Castle in the Scottish Highlands, often back-to-back with the UK version.
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