The lineup for the second installment of Celebrity Traitors was revealed this morning (May 2), with one well-known Welsh performer among the participants.
Welsh actor Michael Sheen joins the 21 celebrities hoping to don the cloak and create mayhem at the notorious fortress in the Scottish Highlands, competing for a charitable prize of up to £100,000.
Claudia Winkleman presides over the competition, where the celebrity contestants—most of whom begin as Faithfuls—attempt to identify the murderous traitors in their midst, who eliminate players during the night hours.
The inaugural season of The Celebrity Traitors broadcast on the BBC last autumn, with its gripping final attracting a peak audience of 15.4 million viewers, according to the channel.
The first season of Celebrity Traitors drew an average viewership of 14.9 million throughout its run.
The ensemble featured distinguished names such as actors Celia Imrie and Nick Mohammed, singer Paloma Faith, author and performer Sir Stephen Fry, broadcaster Jonathan Ross and comedian Alan Carr, who emerged victorious playing a Traitor.
The spin-off series achieved an average viewership of 14.9 million during its broadcast—the largest television audience of 2025.
What is The Traitors?
All contestants arrive at the castle as Faithfuls, though this quickly shifts as Traitors are selected from within the group. The Faithfuls’ sole objective is to identify and banish every traitor before the conclusion of the game. The Traitors must remain hidden and avoid elimination.
If the Faithfuls successfully remove all Traitors before the game ends, the surviving Faithfuls claim the prize money. Should any Traitors remain at the game’s conclusion, those Traitors win and take the funds.
In most episodes, participants convene at the Round Table to debate who they believe are Traitors and may ‘banish’ a contestant to remove them from the competition. The contestant receiving the most votes is banished and must leave the castle immediately, though not before disclosing their status as either Traitor or Faithful to the remaining group.
Most evenings, the Traitors convene privately and may collectively select a Faithful to ‘murder’ and remove from the game. The selected Faithful discovers they have been murdered, and the rest of the group learns the identity of the ‘murdered’ contestant during the following morning’s breakfast.
The Faithfuls and Traitors must collaborate throughout the game in a series of challenges and tasks known as ‘missions’ to potentially increase the prize pot, with a total prize fund of up to £100,000 for a charity of their choice in the celebrity version.
Who is Michael Sheen?
Born in Newport in 1969, Michael Sheen is a stage and screen actor who trained at London’s Royal Academy of Dramatic Art. He worked primarily in theatre during the 1990s, appearing in productions of Romeo and Juliet (1992), Henry V (1997), Look Back in Anger (1999), and Caligula (2003).
He began screen work in the 2000s, concentrating on biographical films, and starred in a trilogy portraying British Prime Minister Sir Tony Blair—the television film The Deal (2003), The Queen (2006), and The Special Relationship (2010)—earning him nominations for a BAFTA Award and an Emmy.
Subsequently, he has appeared in numerous films and television programmes including The Twilight Saga: New Moon (2009), Tron Legacy (2010), Fox’s Prodigal Son (2019-2021) and the BBC/Amazon Studios fantasy comedy series Good Omens (2019-present).
The full cast of Celebrity Traitors 2026
– Amol Rajan – Journalist and broadcaster – Bella Ramsey – Actor – James Acaster – Comedian and podcaster – James Blunt – Singer/songwriter – Jerry Hall – Model and actress – Joanne McNally – Comedian – Joe Lycett – Comedian – Julie Hesmondhalgh – Actor – King Kenny – Content creator – Leigh-Anne Pinnock – Singer/songwriter – Maya Jama – Broadcaster and entrepreneur – Michael Sheen – Actor and presenter – Miranda Hart – Actor and author – Myha’la – Actor – Professor Hannah Fry – Broadcaster and mathematician – Richard E Grant – Actor and author – Rob Beckett – Comedian – Romesh Ranganathan – Comedian – Ross Kemp – Actor and presenter – Sebastian Croft – Musician and actor – Sharon Rooney – Actor