Tina O'Brien reveals Coronation Street murder twist, posts holiday photos

Actor Jack P. Shepherd said Tina O'Brien entered the green room and announced that her character Sarah Platt had killed builder Theo Silberton, a plot twist that aired in June 2026 on ITV's Coronation Street. The murder sparked a police investigation with several suspects before Sarah was arrested and charged.

Around the same time, O'Brien shared a series of Instagram images from a seaside holiday with co‑star Alison King and King's daughter. The photos, including a blue‑striped bikini shot, attracted over 20,000 likes and comments from fellow cast members and fans, while the actress prepared for the next phase of the storyline involving her character's prison storyline.