David Tennant is the stage name of David John McDonald (born 18 April 1971), a Scottish actor from Bathgate, West Lothian, best known for portraying the tenth incarnation of the Doctor in the television series Doctor Who.
Already a well-known theatre actor, Tennant achieved wider fame for his TV roles in Casanova and Doctor Who, as well as his film role as Barty Crouch Jr in Harry Potter and the Goblet of Fire.

He was ranked the 24th most influential person in the UK's media, on the 9 July 2007 MediaGuardian supplement of The Guardian. Tennant also appeared in the paper's annual media rankings in 2006.