David Tennant, the stage name of David MacDonald, (born 18 April 1971) is a Scottish actor, from Bathgate, West Lothian, best known as the tenth actor to portray the Doctor in the television series Doctor Who.

Already a well-known theatre actor, he achieved wider fame in the United Kingdom for his TV roles in Casanova and Doctor Who. International audiences know him best for playing Barty Crouch Jr. in the film adaptation of Harry Potter and the Goblet of Fire.