Graham Norton

Graham Norton was a celebrity on Earth. While the Eleventh Doctor was trying to drop off Dermot O'Leary at the National Television Awards in 2011, he accidentally overshot by a year. They saw Graham on the viewscreen. He was preparing to present the news, but was confused by the sudden arrival of the TARDIS in his studio. (NOTVALID: National Television Awards Sketch 2011)

He later met the Twelfth Doctor at Sprout Boy's BBC Christmas party. (NOTVALID: Sprout Boy meets a Galaxy of Stars)

Accidental appearances
Graham Norton is unique in that he has appeared on Doctor Who by accident twice.
 * A mistake during the first broadcast of Rose in the UK meant that sound from a BBC Three program,  hosted by Graham Norton, was heard over the scene in which Rose first encounters the Autons.
 * During its airing in some parts of England, an animated advert for the talent show  began playing over the cliffhanger of The Time of Angels. This sparked complaints to the BBC, who later apologised. The advert contained an animated Graham Norton, who later joked about it on his own show – saying he finally secured a role on Doctor Who, apparently unaware of his previous, accidental interruption. Norton then played a version of the cartoon banner, with a Dalek exterminating his cartoon self; coincidentally, the same show also featured an appearance by Karen Gillan and they spoke further about the error.

Other matters

 * Although Graham says he is presenting the news in the NTA sketch, he is actually on the set of . In real life, he is not a newscaster.
 * Graham Norton succeeded Terry Wogan as the BBC's commentator for the Eurovision Song Contest.