Doctor Who series 2

The second series of the British science fiction programme Doctor Who was preceded by the Christmas special "The Christmas Invasion" broadcast on 25 December 2005. A regular series of thirteen episodes was broadcast weekly in 2006, starting with "New Earth" on 15 April and concluding with "Doomsday" on 8 July. In addition, two short special episodes were produced; a Children in Need special and an interactive episode, as well as thirteen minisodes titled Tardisodes. It is the second series of the revival of the show, and the twenty-eighth season overall.

It is the first series to feature David Tennant as the tenth incarnation of the Doctor, an alien Time Lord who travels through time and space in his TARDIS, which appears to be a British police box on the outside. The Doctor continues to travel with his companion Rose Tyler (Billie Piper), with whom he has grown increasingly attached. They also briefly travel with Rose's boyfriend Mickey Smith (Noel Clarke), and Rose's mother Jackie (Camille Coduri). The series is connected by a loose story arc consisting of the recurring word "Torchwood". This is also the first series to be preceded by a Christmas special, the success of "The Christmas Invasion" led to the Christmas special becoming an annual tradition.

The Cybermen were reintroduced with a new origin story set in a parallel universe. In the "Rise of the Cybermen" and "The Age of Steel" two-part story, the Doctor and his companions crash land in a parallel London where the Cybermen are being created on modern-day Earth. The Cybermen reappear in the 2006 two-part finale "Army of Ghosts" and "Doomsday", exploiting a breach between universes to invade the Doctor's Earth.

Russell T Davies returned as the head writer for the series. The production of all episodes was overseen by Phil Collinson, while Julie Gardner took on the role of executive producer. The musical score was composed by Murray Gold. Most of the filming was conducted in Cardiff, Wales. The critical reception was overwhelmingly positive, with the series garnering acclaim for its writing, themes, performances, and production values, culminating in multiple awards, including five accolades at the BAFTA Cymru Awards.