The Traitors series 4 cast in full as the BBC show returns January 1, 2026 editor News 0 The Traitors series 4 launches on New Year’s Day 2025 on BBC One with Claudia Winkleman returning to front the show. Source: https://www.express.co.uk/showbiz/tv-radio/2152194/the-traitors-series-4-cast-full READ from source