The David Tennant Treat 4 Today is a batch of photos which the BBC released to promote the Doctor Who episode The Waters Of Mars.
The episode was one of the special episodes which were broadcast in 2009. David Tennant starred as the Tenth Doctor in this episode.
Please click on any photo for a larger version.
More photos were released by the BBC for this episode but these are the only ones which featured David Tennant.
Doctor Who section of DavidTennantOnTwitter.com