Development replaced
Christopher Eccleston who left after one series.|alt=David Tennant at a comic-con panel, in front of a microphoneFollowing the success of
the opening episode of the first series, the
BBC announced that
Doctor Who had been recommissioned for both a second series and a Christmas special on 30 March 2005. The series was the first series of
Doctor Who to be preceded by a Christmas special. The success of the Christmas special led to it becoming
an annual tradition. Production on the series began on 1 August 2005 and concluded on 31 March 2006.
Phil Collinson produced all episodes, with
Julie Gardner acting as executive producer.
Writing Russell T Davies continued to act as
head writer and
executive producer, contributing several episodes of the series. New writers for the show included
Toby Whithouse,
Tom MacRae,
Matt Jones, and
Matthew Graham. Returning writers
Mark Gatiss and
Steven Moffat also contributed episodes to the series.
Stephen Fry was due to write the eleventh episode, but was forced to withdraw as he could not complete the script in time. Davies consequently hired Graham, who he had been trying to hire for series three, to write "
Fear Her". The villain of the episode "
Love & Monsters", the Abzorbaloff, was designed by the winner of a
Blue Peter contest. "
The Runaway Bride", which was supposed to be the midway point of the original line-up, was moved early on to be the Christmas special for the next series, and was replaced by "
Tooth and Claw", which had its roots in a story about "Queen Victoria and a werewolf", something Davies had been contemplating since 2004. The order of the first few episodes moved around a bit while being written, and were only finalised after the early scripts were partially done, in order to find the best way to develop Tennant's Doctor, especially for those viewers confused by the regeneration. The series is primarily set on Earth (though not as much as the first series was) due to the cost involved in creating another planet, Davies stated; only two stories were set on another planet. However, the team had learnt from the first series about the specific challenges faced by a sci-fi series; instead of last-minute changes to reduce CGI, plots were written in mind to use shots needing less CGI: gardens and concrete plazas, such as those employed in the then-recently released
Battlestar Galactica show, which allowed an equitable budgetary distribution between stories. The second series came about quite differently from the first, not having to present every single detail to the BBC: discussions and plot changes happened as much in coffeehouses and on phone as it did in writing, and therefore the first outline had much more detail than the first series, allowing for a more connected series. Just like the first series, the second series saw the return of another classic enemy, the
Cybermen. Presented with the opportunity to re-introduce Cybermen to a whole new generation, Davies' prime objective for these Cybermen was to erase the word "silver" and to instead choose to stress the terms "metal" and "steel", emphasising the loss of their humanity as a source of their monstrosity. The mythology of
Torchwood is built across the series, though it did not feature in any of the early outlines or drafts for series 2 until its reveal in the finale In "
The Christmas Invasion", it is revealed to be a secret organisation which possesses alien technology, and its establishment is shown in "
Tooth and Claw", whose late addition to the series allowed Davies to fix it in British history by associating it with Queen Victoria . References then gradually started appearing in the script of every episode: blocked websites, mentions of buildings and archives owned by Torchwood and so on. Contemporary Torchwood is finally visited by the Doctor and Rose in "
Army of Ghosts" / "
Doomsday", at which point it is situated within
London's
Canary Wharf and accidentally allows the invasion of the Cybermen and, subsequently, the
Daleks.
James Strong,
Dan Zeff, and
Graeme Harper. Harper had previously worked on the show's original run, which included directing
The Caves of Androzani (1984) and
Revelation of the Daleks (1985) in the show's original run. Recording for the Christmas special began on 23 July 2005. The
Clearwell Caves were used twice: the interior of the Sycorax ship, and the Beast's Pit in "
The Satan Pit". Production blocks were scheduled around the directors. The majority of filming took place in Wales, Parts of the soundtrack were performed by the
BBC National Orchestra of Wales and orchestrated by
Ben Foster, unlike in the first series, which relied almost completely on orchestral samples. ==Release ==