Theo James (born December 16, 1984, in Oxford) is a British actor known for his versatility across film and television. A graduate in philosophy from the University of Nottingham and trained at Bristol Old Vic Theatre School, he first gained attention in A Passionate Woman (2010) and Downton Abbey. He rose to fame playing Four in the Divergent film series (2014–2016), followed by roles in Underworld films and voice work in Castlevania and The Witcher. In 2022, he starred in The White Lotus season 2, earning a Primetime Emmy nomination. A skilled musician and former aspiring singer, James has also produced several films. He is married to actress Ruth Kearney and is involved in humanitarian efforts, particularly in support of Syrian refugees.