A familiar face to “Doctor Who” fans is rejoining the long-running British sci-fi series as Ncuti Gatwa exits the lead role after two seasons.
In Saturday’s season finale, Gatwa’s Time Lord regenerated and fans got a glimpse of Billie Piper, who played the character Rose Tyler for 35 episodes between 2005 and 2013. Tyler was a companion to versions of the doctor played by Christopher Eccleston and David Tennant.
