He Knew He Was Right (2004), Blackpool (2004), Casanova (2005), and The Quatermass Experiment (2005). Later that same year, he appeared as Barty Crouch Jr. in the film Harry Potter and the Goblet of Fire. Doctor Who Doctor Who returned to British screens in March 2005, with Christopher Eccleston playing the role of the Ninth Doctor in the first series. Tennant replaced him as of the second series, making his first, brief appearance as the Tenth Doctor in the episode "The Parting of the Ways" (2005) at the end of the regeneration scene, and also appeared in a special 7-minute mini-episode shown as part of the 2005 Children in Need appeal, broadcast on 18 November 2005. He began filming the new series of Doctor Who in late July 2005. His first full-length outing as the Doctor was a 60-minute special, "The Christmas Invasion", first broadcast on Christmas Day 2005. Tennant had been formally offered the role of the Doctor during rehearsals for The Quatermass Experiment. Although the casting was not officially announced until later in April, both castmates and crew became aware of the speculation surrounding Tennant; in the live broadcast Jason Flemyng (Quatermass) changed his first line to Tennant's Dr. Briscoe from "Good to have you back, Gordon" to "Good to have you back, Doctor" as a deliberate reference. Tennant has expressed enthusiasm about fulfilling his childhood dream. He remarked in a radio interview: "Who wouldn't want to be the Doctor? I've even got my own TARDIS!" In 2006, readers of Doctor Who Magazine voted Tennant "Best Doctor" over perennial favourite Tom Baker. Writer Russell T Davies made the decision not to use Tennant's own Scottish accent for the character as he did not want the Doctor's accent "touring the regions", using Estuary English instead. Tennant has gone on record as saying that, contrary to tabloids reports, he was not upset at not being able to play the role in his own accent and in fact had never wanted to. However, he was pleased to be able to use his own accent in one episode, when the Doctor briefly masquerades as "Dr. James McCrimmon" of Edinburgh in Tooth and Claw – a nod to the Second Doctor's companion Jamie McCrimmon. He previously had a small role in the BBC's animated Doctor Who webcast Scream of the Shalka. Not originally cast in the production, Tennant was recording a radio play