The Next Doctor

199 – "The Next Doctor"
199 – "The Next Doctor"
Doctor Who episode
Cast
	Doctor David Tennant – Tenth Doctor;
	Companions David Morrissey – "The Next Doctor" (Jackson Lake); Velile Tshabalala – Rosita Farisi;
	Others Dervla Kirwan – Miss Hartigan; Nicholas Briggs – Cybermen voices; Paul Kasey – Cyber Leader; Ruari Mears – Cybershade; Edmund Kente – Mr Scoones; Michael Bertenshaw – Mr Cole; Jason Morell – Vicar; Neil McDermott – Jed; Ashley Horne – Lad; Tom Langford – Frederic; Jordan Southwell – Urchin; Matthew Allick – Docker;
Production
Directed by	Andy Goddard
Written by	Russell T Davies
Produced by	Susie Liggat
Executive producer(s)	Russell T Davies; Julie Gardner
Music by	Murray Gold
Production code	4.14
Series	2008–2010 specials
Running time	60 minutes
First broadcast	25 December 2008
Chronology
← Preceded by; "Journey's End"	Followed by →; "Planet of the Dead"

"The Next Doctor" is a special episode of the British science fiction television programme Doctor Who, broadcast on 25 December 2008 as the fourth Doctor Who Christmas special of the revived series. During its original airing, the episode had an audience of 13.1 million viewers and was the second-most-watched programme of Christmas Day 2008.

David Tennant stars as the Tenth Doctor with one-off companions Jackson Lake (David Morrissey) and Rosita Farisi (Velile Tshabalala). The episode is set in London during the Christmas period of 1851. In the episode, the Doctor teams up with a man who appears to be another incarnation of himself; in their quest to foil a plot by the Cybermen to create a giant Cyberman called a CyberKing under the control of workhouse matron Miss Hartigan (Dervla Kirwan), the two inadvertently discover that the "new" Doctor is actually Jackson Lake, a regular human who began suffering from amnesia and believing himself to be the Doctor after interacting with Cyberman technology.