British theatre and television actor recognized for portraying Michael Adeare in Netflix's The Crown, Thomas Cranmer in Wolf Hall, and Chief Officer Wilde in Julian Fellowes' Titanic. He is particularly known for his work in popular period pieces.
He earned a degree in English literature at Oxford University. He would later make his acting debut in a 1994 episode of Alleyn Mysteries.
A constant on and off the stage, he has starred in countless plays in both English and Spanish and has directed productions of Romeo & Juliet and other plays.
His parents are Charles William Lyle Keen and Lady Priscilla Mary Rose Curzon. His grandfather, Edward Curzon, is the 6th Earl of Howe. He married Spanish actress Maria Fernandez Ache and the couple had a daughter, Dafne. Dafne is an actress who rocketed to fame starring in 2017's Logan.
In 2006, he appeared in the film Love and Other Disasters alongside Brittany Murphy.