Dark Water (Doctor Who)

252a – "Dark Water"
Doctor Who episode
Missy reveals her true identity as the Master to a horrified Doctor. The climax was removed from all preview copies of the episode,[1] and the actors involved recorded their lines in ADR to hide the reveal from spectators.[2]
Cast
Doctor Peter Capaldi – Twelfth Doctor
Companion Jenna Coleman – Clara Oswald
Others Samuel Anderson – Danny Pink Michelle Gomez – Missy Sheila Reid – Gran Chris Addison – Seb Andrew Leung – Dr Chang Nigel Betts – Mr Armitage Joan Blackham – Woman Antonio Bourouphael – Boy Jeremiah Krage – Cyberman
Production
Directed by	Rachel Talalay
Written by	Steven Moffat
Script editor	David P Davis
Produced by	Peter Bennett
Executive producer(s)	Steven Moffat Brian Minchin
Music by	Murray Gold
Series	Series 8
Running time	First of two-part story, 46 minutes
First broadcast	1 November 2014 (2014-11-01)
Chronology
← Preceded by "In the Forest of the Night" Followed by → "Death in Heaven"
List of episodes (2005–present)

"Dark Water" is the eleventh episode of the eighth series of the British science fiction television programme Doctor Who. It was first broadcast on BBC One on 1 November 2014. The episode was written by showrunner and head writer Steven Moffat and was directed by Rachel Talalay. It is the first of a two-part story; the concluding episode "Death in Heaven", the finale of the eighth series, aired on 8 November.

In the episode, Danny Pink (Samuel Anderson) is killed, and finds himself in an afterlife called the Nethersphere. As the Doctor (Peter Capaldi) and his companion Clara Oswald (Jenna Coleman) try to find Danny, they find themselves in a facility that accommodates Cybermen, run by recurring character Missy (Michelle Gomez). In the episode's climax, Missy reveals her true identity as a female incarnation of the Doctor's arch-enemy The Master, last seen in the 2009–10 serial "The End of Time".

The episode was watched by 7.34 million viewers and received widespread critical acclaim, with the performances of Capaldi, Gomez, Coleman and Anderson being praised. Critics praised the horror strand of the episode, the maturity level, and the darker, more mature and morbid themes.