Actor who starred as Frank in 2013's The Lone Ranger, and as Joy Division drummer Stephen Morris in the 2007 film Control. In 2014 he starred as James Furlong in the Hideaways-related The Last Furlong. In 2019, he was cast in the CBS All Access show Star Trek: Picard in the role of Narek.
He and his twin brother, Luke, joined the National Youth Theatre. He later graduated from the London Academy of Music and Dramatic Art.
He made his stage debut at the Royal Court Theatre in 2009, starring with his twin brother in Over There.
He was raised with his twin brother Luke and older brother Sam by their father, an architect, and mother, a schoolteacher.
He and twin brother Luke Treadaway, also an actor, formed a band in their youth called Lizardsun.