English film and television actor most well known for his portrayal of Olyvar in the hit HBO fantasy series Game of Thrones. He has also had prominent recurring roles on AMC's Humans, ITV's Mr Selfridge and Freeform's Shadowhunters: The Mortal Instruments.
He earned his first major acting role in 2011 portraying Estella's admirer in the television miniseries of Charles Dickens' Great Expectations.
In 2014, he made his silver screen debut playing Toby in the Icelandic comedy Bonobo.
He was born William James Sibree Tudor to two doctors in London, England. He briefly considered following in his parents' footsteps, but decided to pursue acting after performing in Doctor Faustus in college.
In 2016, he was cast alongside Stephanie Leonidas in the English drama Tomorrow.