RTL's 'Die Verräter' season 4 premieres Aug 17, filmed at Belgium’s Château de Mielmont

The German reality‑game show ‘Die Verräter – Vertraue Niemandem!’ returns for its fourth season on RTL. The eight‑episode season begins on 17 August 2026, airing Monday to Thursday at 20:15, with the first two episodes streamed earlier on RTL+ from 3 August. Host Sonja Zietlow will moderate 18 celebrity participants, including influencer Cathy Hummels, footballer Max Kruse, singer Gabriel Kelly, model Papis Loveday and others. Contestants must identify “traitors” among them for a prize fund of up to €50,000. The programme is shot at the historic 12th‑century Château de Mielmont in the Belgian town of Onoz, a location previously used for the show’s third season.

The broadcast aims to blend psychological intrigue with entertainment, drawing a sizeable audience on free‑to‑air television and streaming platforms such as RTL+, Sky and WOW.