Ncuti Gatwa is exiting the Tardis. In the climax of Saturday’s Finale of “Doctor Who” Series 14, Gatwa’s Doctor regenerates into Billie Piper, who previously played companion Rose Tyler in Series 1 (2005) and Series 2 (2006).

"What a Doctor! Thank you, Ncuti!" added Davies. "As his final words say, this has been an absolute joy, and the team in Cardiff and everyone who has worked on this show for the past few years, are so lucky to have been part of Ncuti’s great adventure as he shoots off to stratospheric new heights."