James Dominic Frain is an English stage and screen actor. His best known television roles include Thomas Cromwell in the Showtime/CBC historical drama The Tudors (2007–2009), Franklin Mott in the HBO drama True Blood (2010), Warwick the Kingmaker in the BBC drama serial The White Queen (2013), John Sumner in the Sky/Canal+ crime drama The Tunnel (2013), Ferdinand Chevalier in the BBC/Space sci-fi thriller Orphan Black (2015–2017), Theo Galavan/Azrael in Fox's Gotham (2015–2016), and Sarek in Star Trek: Discovery (2017–2019). He also played leading roles in the BBC dramas Armadillo (2001), The Buccaneers (1995) and The Mill on the Floss (1997).

The Tudors is a historical fiction television series set primarily in 16th-century England, created and written by Michael Hirst and produced for the American premium cable television channel Showtime. The series was a collaboration among American, British, and Canadian producers, and was filmed mostly in Ireland. While named after the Tudor dynasty as a whole, it is based specifically upon the reign of King Henry VIII.