David Tennant has signed a one million pound deal to appear in the entire fourth series of Doctor Who, according to the Daily Mirror today.The newspaper says: "Despite false reports suggesting the 35-year-old would bow out halfway through next year's run, insiders have revealed he will film the full 13 episodes."According to a source: "To be honest, David was never going anywhere. He loves to create an air of mystery about his role in Doctor Who, and when he might leave, so he's happy for people to speculate about his departure."But the truth is he's finished filming the third series and he's signed a contract to appear in the whole of the next series. That will see him filming throughout 2008. It's brilliant for the show and the fans."NB: The Mirror story contains a minor spoiler.

Also David Tennant will be appearing in the last episode of the current series of Dead Ringers on BBC2.He will not be in it as the Doctor but will be doing 'an impression', say sources.The show - well-known for Jon Culshaw's take on Tom Baker's Doctor, plus its Doctor Who and Torchwood skits - will go out on Thursday, March 29 at 9.30pm.

Great News cant wait to see David in his third series as the Doctor, Personally he is my favourite Doctor so far. Keep it going David!