Health and disease series ;

The fifteenth series of the British science fiction television programme Doctor Who premiered on 12 April 2025. This series is also known as "Season Two" following the production changes and the acquisition of Doctor Who's international broadcasting rights by Disney+ prior to the previous series. It is the sixth series led by Russell T Davies as head writer and executive producer and the second since his return to the show in 2023, having previously worked on it from 2005 to 2010. This series is the fifteenth to air following the programme's revival in 2005, and is the forty-first season overall. This is the second and final series to star Ncuti Gatwa as the Fifteenth Doctor, an incarnation of the Doctor, an alien Time Lord who travels through time and space in the TARDIS, which appears to be a British police box from the outside.