David John Tennant (né McDonald; born 18 April 1971) is a Scottish actor. He is best known for portraying the lead character in Doctor Who, headlining the show as the Tenth Doctor from 2005–2010, and returning as the Fourteenth Doctor in 2023. His other notable screen roles include portraying Barty Crouch Jr. in Harry Potter and the Goblet of Fire (2005), DI Alec Hardy in Broadchurch (2013–2017), Crowley in Good Omens (2019–present), and various fictionalised versions of himself in Staged (2020–2022).
Tennant has worked extensively on stage, including a portrayal of the title character in a 2008 Royal Shakespeare Company production of Hamlet that was later adapted for television. He is also a voice actor, featured in the animated series DuckTales (2017–2021) as the voice of Scrooge McDuck. In 2015, he was the recipient of the Special Recognition Award at the National Television Award.