: Tegan Jovanka (Janet Fielding) and Ace (Sophie Aldred) have central roles, while others like Ian Chesterton (William Russell) and Jo Jones (Katy Manning) appear in a final "companion support group".
: Disguised as Rasputin in 1916 Russia, the Master uses a captured energy being (a Qurunx) to fuel a "forced regeneration," successfully stealing the Doctor's body and identity for a time.
: Sacha Dhawan delivers a prominent performance, including a memorable sequence dancing to "Rasputin" by Boney M. The Regeneration The Power of the DoctorDoctor Who : Season 13 E...
" The Power of the Doctor " is a feature-length special that originally aired on , marking the BBC's centenary and serving as the final adventure for the Thirteenth Doctor. Plot Overview
: With the help of past companions and a holographic AI of herself, the Doctor reverses the forced regeneration and defeats her enemies, but is mortally wounded by the Master in his final act of spite. Cast & Special Appearances : Tegan Jovanka (Janet Fielding) and Ace (Sophie
This special is notable for its extensive fan service, bringing back numerous classic characters:
The episode follows the Thirteenth Doctor (Jodie Whittaker) as she faces her deadliest enemies—the Daleks, the Cybermen, and the Master—in a unified plot to destroy her legacy. The Regeneration " The Power of the Doctor
: Simultaneously, the Daleks attempt to trigger simultaneous volcanic eruptions across Earth, while CyberMasters attack UNIT headquarters.