Fans of the acclaimed BBC drama Doctor Foster can finally rejoice! The BBC has officially confirmed that the highly anticipated third and final series is on its way, nearly a decade after its last gripping installment. The news broke on Wednesday, February 25, 2026, sending a wave of excitement through viewers eager to revisit the tumultuous life of Dr. Gemma Foster.

Multi-award-winning actress Suranne Jones will return to her iconic role as Gemma Foster, joined by Bertie Carvel as Simon and Tom Taylor as their now-grown-up son, Tom. The new five-part series, penned by creator Mike Bartlett, is expected to begin filming this spring in and around Hertfordshire. This final chapter will pick up ten years after the events of season two, finding Gemma still working as a GP and living in the same house, but on the cusp of a fresh start as she prepares for a new marriage. However, shadows from her past are set to resurface, threatening her newfound happiness and reputation.

Suranne Jones shared her excitement about returning, stating, "When I got the call to ask if I wanted to return as Gemma Foster, I knew the time was right. We needed space from the first two series, and we needed Tom – Gemma and Simon's runaway son – to return as an adult with questions." Creator Mike Bartlett added, "I always hoped that we'd get to tell the final part of Gemma's story - which is about a woman seeking justice in an unfair world." While the core cast returns, Jodie Comer, who played Kate Parks, will not be joining the final series, as her character's storyline reached an emotional conclusion. Produced by Drama Republic, the series will air on BBC One and BBC iPlayer, with some reports suggesting a possible release in 2027.