The fourth season of the American television series The Traitors was announced on August 14, 2024. The season premiered on January 8, 2026. The season concluded on February 26, 2026, where Rob Rausch won as a Traitor, while Maura Higgins placed as the runner-up, as a Faithful.
Similar to the previous seasons, this season was primary filmed in Ardross Castle in the Scottish Highlands.
<div style="overflow: auto;"> </div> Similar to the second and third seasons, this season's cast was composed entirely of reality show participants and public figures. Peacock announced the 23 cast members via social media on June 13, 2025.
In the first episode, Cumming revealed that one contestant would be selected as a "Secret Traitor", whose identity would be hidden from both the audience and the regular Traitors. Each night, they would provide the Traitors with a shortlist of Faithful to murder. Contestants were therefore only initially identified as Faithful by appearing on murder shortlists selected by the Secret Traitor, or after being banished.
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