David Tennant started filming his first scenes as the tenth Doctor Who yesterday, describing his new look as the Time Lord as 'geek chic'.
The Scottish actor teamed up with co-star Billie Piper, as his sidekick Rose Tyler, to shoot scenes for the Christmas special and the second series of the BBC Wales drama.
The initial filming is taking place in London during the next two weeks before the team returns to Wales to shoot on location and predominantly in Cardiff.
Tennant has taken over from Christopher Eccleston who played the Doctor in the first series, penned by Swansea writer Russell T Davies. Eccleston shocked fans when he announced he was quitting the leading role just days after the first episode of series one was screened, as he didn't want to be typecast.
But the hunt for his replacement did not take long and it was announced that Casanova star Tennant would be taking over in the second series. And as he began filming yesterday, Tennant said he was impressed with his transformation as the Doctor.
'I think we've come up with something distinctive that's both timeless and modern, with a bit of geek chic and of course, a dash of Time Lord,' said Tennant, who teamed a brown pinstripe suit with an ankle-length overcoat and plimsolls for a publicity shot.
'Most importantly Billie tells me she likes it - after all she's the one who has to see me in it for the next nine months.'
Billie Piper said, 'I'm thrilled to be stepping back into the role of Rose. We plan to make series two even bigger and better and challenge the viewers' imaginations like never before.'
Filming started just days after Tennant admitted he faced a backlash from fans who do not want him to be the tenth Time Lord.
He discovered on a website dedicated to the show that some fans are up in arms about him landing the role. 'Chris was so good in it. So sure-footed with what he did. So it left me thinking, 'there's an awful lot to live up to here',' he said. 'I just hope people like it.
'I hope they stick with it and give it a chance.'
Writer Russell T Davies is also the series executive producer. 'We can promise new thrills, new laughs, new heartbreak, and some terrifying new aliens,' he said.