26-year-old actor Matt Smith has been cast as the Eleventh Doctor, as revealed in today's special broadcast of Doctor Who Confidentialon BBC One. Smith will succeed David Tennant in the role for the fifth series, which begins filming this summer and will air in 2010.

Smith has appeared in various television productions, including alongside Billie Piper in the BBC's adaptations of the Philip Pullman novels The Ruby in the Smoke and The Shadow in the North. He co-starred in the drama series Party Animals, and on stage was in Alan Bennett's acclaimed play The History Boys.

Smith was born and bred in Northampton, England, and later attended the University of East Anglia in Norwich. He is the youngest actor ever to have been cast as the Doctor in the TV series.

BBC News quotes Smith as saying: "I've got this wonderful journey in front of me where I've got this six months to build this Time Lord - and that's such an exciting prospect." Executive producer Piers Wengerhas said that: "It was abundantly clear that he had that 'Doctor-ness' about him. You are either the Doctor or you are not." The BBC News site has also published a profile of Smith, while the official website has avideo interview with the actor available to UK users. The first BBC News story has been updated with a clip from an interview with Smith, which is available to users worldwide.

The BBC Press Office, meanwhile, has a full release with quotes from new chief writer Steven Moffat, who was one of those behind Smith's casting. "The Doctor is a very special part, and it takes a very special actor to play him. You need to be old and young at the same time, a boffin and an action hero, a cheeky schoolboy and the wise old man of the universe. As soon as Matt walked through the door, and blew us away with a bold and brand new take on the Time Lord, we knew we had our man."

Some biographical notes on Smith follow, from the official BBC Doctor Who website:

The announcement yesterday of this afternoon's Doctor Who Confidential: The 11th Doctor brings to an end some nine weeks of speculation in the media as to who the next Doctor will be! Throughout those weeks a large number of names have been bandied about, not least in the last month leading up to the broadcast of The Next Doctor on Christmas Day.

Ever since Tom Baker first mentioned the possibility of a woman as his successor, it has arisen whenever casting has been the subject of media attention. In December the debate opened further as UKRC, a group consisting of women working in science, engineering and technology, put forward their view on why the Doctor should be played by a woman. "There is a distinct lack of role models of female scientists in the media and recent research shows that this contributes to the under-representation of women in the field. The UKRC believes that making a high-profile sci-fi character with a following like Doctor Who female would help to raise the profile of women in science and bring the issue of the important contribution women can and should make to science in the public domain." Suggestions from the group included Sandi Toksvig, Alex Kingston, Helen Mirren, Jenny Eclair and Bond girl Olga Kurylenko. (Covered by Telegraph, CBC,Escapist Magazine)

Head writer Russell T Davies threw his own suggestions into the frame at the press screening of The Next Doctor, mentioning actresses Catherine Zeta Jones and Lesley Sharp. (Press Association, Guardian,Telegraph, Western Mail) The Sun suggested Catherine Tate or Meera Syal, and reported an insider as saying:"The BBC really wants to shake things up. There is no reason storyline wise why the Doctor cannot be a woman and from any ethnic background.The Doctor has morphed before and will do so again. To keep the edge they need to change and update the show otherwise there is a danger it will look tired."

Writer Mark Smith, however, was not so convinced: "The problem is every time there's been a change of Doctor since, the idea of a woman has been mooted - even though it is a terrible idea. I mean, why would you bother? Russell T Davies has had success with the Doctor Who revival over the last four years because he understands the concept and has not tinkered with the basics: the character of the Doctor, his relationship with his companion, the Tardis and the baddies. I suspect Russell is just being a little naughty; he remembered Tom Baker's joke and thought it would be a good idea to do it again. We Doctor Who fans do take it all terribly seriously, so he probably could not resist being a bit mischievous."
(Herald)

However, the official BBC press release isn't giving anything away: "... the new Doctor will be giving his or her initial reaction to being the new, 11th incarnation of one of television's most loved characters."

In the lead-up to The Next Doctor, interest inevitably turned to David Morrissey, though he refused to be drawn in the many interviews he undertook in the show publicity. However, since broadcast of the episode the odds on the actor have, unsurprisingly, tailed off.

Meanwhile Paterson Joseph has remained one of the favourites to be the next Doctor since his name was first cited by the BBC's entertainment correspondant Lizo Mzimba back in October, and maintained the top spot throughout December. Rumours were also fuelled by fellow Survivors actor Phillip Rhys making a sly comment during an interview on E24: "Paterson, who is the next ... possibly Doctor Who ...". The actor himself has remained tight-lipped on his possible succession to David Tennant.

The Sun reported on fans of the comic Bill Bailey signing an online petition for the BBC to consider him for the role.

The Daily Record reported an exclusive comment by actor Robert Carlyle about playing the role: "This has followed me for two years. But no one has ever approached me about it and I never wanted to talk about it because you can't talk about another actor's part. I would treat it with respect and regard it properly, but I would have to be approached about it first."

Next up, comedian David Walliams entered the frame, with the Telegraph reporting: "The Little Britain comedian apparently sparked the betting frenzy after admitting he would accept the role if it was offered." The paper reported the odds on the actor dropping to 8-1. However, the actor seemed surprised at the news when questioned about it on ITV1's daytime chat show Loose Women.

Just after Christmas, the Star reported that chatshow host Jonathan Ross was touting his friend Russell Brand for the role on his blog: "He could go back in time and steal Manuel's ansaphone. His companion would have to be a strong woman. Helen Mirren or Germaine Greer or Maggie Smith."

Bringing us up to date, last night saw the odds on who would be the next Doctor fluctuate as further names came into the fray. Online betting companybetfair dropped the odds on actor Ben Whishaw dramatically, closely followed byJack Davenport and Aiden Gillen.

The Mail is backing the favourite, Paterson Joseph, though suggests that former companion Billie Piper is possible. The Sun doesn't think a woman is likely though, citing the ubiquitous insider: "It was thought it might be a bit tricky trying to explain the sex change bit to the kids so the idea has been parked."

The Guardian agrees: "It is understood that those hoping for the first female doctor will be disappointed. Doctor Who's new executive producers, Coupling creator Steven Moffat and BBC Wales head of drama Piers Wenger, are said to have stuck with tradition and cast a man in the role. However, Moffat and Wenger are thought to have steered away from the more obvious names that have been linked to the role."

BBC Breakfast covered the news, with guests Lizo Mzimba and Moray Laing refusing to speculate on air! A filmed report by Mzimba reiterated possibilitiesCatherine Zeta Jones, Russell Tovey, Chiwetel Ejiofor, Paterson Joseph and a new name to the list, Matt Smith. BBC News has also provided a list of possible contenders for the role. And finally, former Doctor Sylvester McCoy spoke on the BBC News channel, saying that he would like to see comedian Billy Connolly playing the role.

All will be revealed tonight, BBC1, 5.35pm!

The New Year's Day repeat of The Next Doctor was watched by 2.2 million viewers according to unofficial overnight figures. The programme, shown at 2.45pm, had a 15% share of the total television audience and was just out-rated by Agatha Christie's Poirot on ITV1 which had 2.4 million watching. Overall, Doctor Who was the 21st most-watched programme of the day. The Doctor Who Prom was watched by 1.7 million, with a 12.6 % share of the audience.

BBC News has announced that the identity of the actor who will play the Eleventh Doctor, succeeding current Doctor David Tennant, will be revealed tomorrow.

The news will come in a special edition of tie-in documentary series Doctor Who Confidential, which is being transmitted on BBC One tomorrow evening at 5.35pm. The episode will also be shown at the same time on BBC Big Screens in town centres across the UK.

The actor was confirmed in the role over the Christmas period and will begin filming for Series Five this summer, for transmission in 2010. New executive producer Piers Wenger is quoted as saying: "We believe the actor is going to bring something very special to the role and will make it absolutely their own. I just can't wait to tell everyone who it is - it has been a nail-biting Christmas trying to keep this under wraps!"

The release from the BBC Press Office confirms that the Confidential episode has been retitled "The Eleventh Doctor" (it was formerly advertised as "The Ten Doctors"), and will feature the actor concerned giving his or her thoughts on having been cast. The press release also suggests that the last of David Tennant's episodes as the Doctor will be broadcast in the New Year of 2010.

The BBC has created a special trailer for the Doctor Who Confidential episode, which is also available to British internet users on its official YouTube page.