Billy Postlethwaite

William John Postlethwaite is the son of actor Pete Postlethwaite and former BBC producer Jacqueline Morrish. He grew up in Shropshire.

He began training in acting at the London Academy of Music and Dramatic Art in 2008 and graduated in 2011.

Postlethwaite made his stage debut as Grigory in the John Hodge play Collaborators in 2011.

In 2017, he appeared in the Game of Thrones episode "Dragonstone", alongside singer Ed Sheeran, in a scene that received critical and fan backlash for Sheeran's cameo.

In 2018, he had a role in Tomb Raider, a film adaptation of the video game franchise. He also starred as Boris Stolyarchuk in the HBO miniseries Chernobyl and had a small role in Sam Mendes' 2019 war drama, 1917.

In 2021, Postlethwaite joined the cast of Beforeigners for its second season.

The actor took up the title role in Macbeth, in addition to the role of Lysander in A Midsummer Night's Dream for the Watermill Theatre. His performance as Macbeth received positive reviews by Judi Herman, writing for WhatsOnStage.com. Macbeth had previously been portrayed by Postlethwaite's father, in 1997.