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Doctor Who Season 15 Debuts with Ncuti Gatwa and Varada Sethu Leading Time-Fractured Adventures

Episode 2, 'Lux,' set in 1952 Miami, features Alan Cumming as cartoon villain Mr Ring-a-Ding and the recurring menace of Anita Dobson’s Mrs Flood.

Ncuti Gatwa and Varada Sethu in Doctor Who Season 2 Episode 2
Ncuti Gatwa and Varada Sethu in 1950s clothing walking up the aisle of a cinema in Doctor Who episode Lux

Overview

  • Doctor Who Season 15 premiered on April 19, 2025, on BBC iPlayer and BBC One, continuing the series' innovative storytelling approach.
  • Ncuti Gatwa returns as the Fifteenth Doctor, joined by Varada Sethu as new companion Belinda Chandra, navigating a season-long quest tied to temporal dislocation.
  • Episode 2, 'Lux,' introduces Alan Cumming as Mr Ring-a-Ding, a cartoon character crossing into the real world in 1952 Miami.
  • Anita Dobson’s Mrs Flood is confirmed by showrunner Russell T Davies as a recurring antagonist appearing in every episode this season.
  • The season emphasizes original threats, blending live-action and animation, and moves away from classic monsters to celebrate the series' 2005 revival anniversary.