Army of Ghosts

177a – "Army of Ghosts"
177a – "Army of Ghosts"
Doctor Who episode
Cast
	Doctor David Tennant – Tenth Doctor;
	Companions Billie Piper – Rose Tyler; Camille Coduri – Jackie Tyler;
	Others Noel Clarke – Mickey Smith; Tracy-Ann Oberman – Yvonne Hartman; Raji James – Dr Rajesh Singh; Freema Agyeman – Adeola Oshodi; Hadley Fraser – Gareth; Oliver Mellor – Matt; Barbara Windsor – Peggy Mitchell; Derek Acorah, Alistair Appleton, Trisha Goddard – themselves; Paul Kasey – Cyber Leader; Nicholas Briggs – Dalek and Cyberman voices; Barnaby Edwards, Nicholas Pegg, Stuart Crossman, Anthony Spargo, Dan Barrett, David Hankinson – Dalek Operators;
Production
Directed by	Graeme Harper
Written by	Russell T Davies
Produced by	Phil Collinson
Executive producer(s)	Russell T Davies; Julie Gardner
Music by	Murray Gold
Series	Series 2
Running time	1st of 2-part story, 45 minutes
First broadcast	1 July 2006
Chronology
← Preceded by; "Fear Her"	Followed by →; "Doomsday"

"Army of Ghosts" is the twelfth and penultimate episode in the second series of the British science fiction television programme Doctor Who which was first broadcast on BBC One on 1 July 2006. It is the first episode of a two-part story; the concluding episode, "Doomsday", was first broadcast on 8 July.

The episode is set in London, some time after the events of the 2006 episode "Love & Monsters". In the episode, the Cybermen come to Earth from a parallel world by following a spherical ship through an interdimensional breach. The Torchwood Institute intends to open this breach further for use as an energy source.