Leo Suter

Leo Suter (born 26 September 1993) is an English actor. He is best known for playing Harald Sigurdsson in the Netflix series Vikings: Valhalla (2022–2024). His other credits include Bad Education (2012), Victoria (2017), Ransom (2017), Clique (2018), Beecham House (2019), Sanditon (2019), Intelligence (2020), and The Liberator (2020). He presently stars as the title role of Detective Inspector Thomas Lynley in the BBC/BritBox crime drama Lynley.

Suter was born in London, son of media executive Tim Suter and businesswoman Dame Helen Alexander, later chair of UBM plc and chancellor of the University of Southampton. He was educated at Colet Court, St Paul's School, and New College, Oxford, where he read Human Sciences.

Suter began acting while studying in school at the age of eleven. He signed his first professional acting contract after performing in his school final play. His theatre roles included Patsy in The Winterling by Oxford Playhouse, Subtle in The Alchemist by Arcola Theatre, and Mercutio in Romeo and Juliet by Southwark Playhouse.

From 2022 to 2024, Suter starred as Harald Sigurdsson in the Netflix series Vikings: Valhalla (2022–2024), directed by Jeb Stuart.

In 2025, he starred as DI Tommy Lynley in the BBC reboot Lynley. The series was premiered on Britbox, before being broadcast on BBC One in January 2026.