David John Tennant (born 18 April 1971) is a Scottish actor. He is best known for his roles as the tenth incarnation of The Doctor in Doctor Who (2005–2010), Giacomo Casanova in Casanova (2005), the title prince in the RSC's 2009 adaptation of Hamlet, Barty Crouch, Jr. in Harry Potter and the Goblet of Fire (2005), DI Alec Hardy in Broadchurch (2013–2017), and Kilgrave in Jessica Jones (2015–2019).
He made his professional acting debut in a staging of The Resistible Rise of Arturo Ui (1991). He also made an early television appearance in the Scottish TV sitcom Rab C Nesbitt (1993). He was awarded his first major TV role in the BBC Scotland drama series Takin' Over the Asylum (1994), but one of his earliest big-screen roles was in Jude (1996). In 2003, he appeared in the film Bright Young Things, and since, he began to appear on television more prominently, when he appeared in a dramatisation of He Knew He Was Right (2004), Blackpool (2004), Casanova (2005), and The Quatermass Experim