David Tennant (in-universe)

David Tennant was a Scottish actor who played the Tenth Doctor.

He had a mole called Daniel. When he showed him off to Billie Piper, she freaked out. (NOTVALID: Doctor What 5)

He filmed a scene from New Earth with Billie Piper, during which the design department tested out their plans to have "ultra-realistic" cat people. (NOTVALID: Doctor Whoah! 370)

In October 2007, he filmed a Children in Need special alongside Peter Davison. (NOTVALID: Doctor Whoah! 388)

While on tour with the Royal Shakespeare Company, Tennant was forced to sign every issue of a fan's extensive Doctor Who Magazine collection, driving him to exhaustion. (NOTVALID: Doctor Whoah! 400)

When Jack Harkness was fighting Sao Til, he reminded the two that they were no longer filming. (NOTVALID: Tonight's the Night)