Second Doctor
The Second Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series "Doctor Who". He was portrayed by character actor Patrick Troughton.
Doctor Who (series 2)
This 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. He 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 Camille Coduri reprises her role as Rose's mother Jackie. 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, which was commissioned to see how well the show could do at Christmas. The success of "The Christmas Invasion" led to the Christmas special becoming an annual tradition.
Two mini-episodes were also recorded: "Doctor Who: Children in Need" was produced for the 2005 Children in Need appeal, and interactive episode "Attack of the Graske" was recorded for digital television following the broadcast of "The Christmas Invasion". 13 "TARDISODEs" were also produced to serve as prequels to each episode. All episodes were filmed as part of the second series' production cycle.
Series two was David Tennant's first in the role of the Doctor after he was cast on 28 April 2005. Following his brief appearance in the closing moments of "The Parting of the Ways" he was next seen in the , broadcast on 18 November 2005. "The Christmas Invasion", broadcast one month later, marked his first full episode.