James Spencer Henry Edmond Marcel Thierrée (born 2 May 1974 in Lausanne, Switzerland) is a Swiss circus performer, violinist, actor and director who is best known for his theatre performances which blend contemporary circus, mime, dance, and music. He is the son of circus performers Victoria Chaplin and Jean-Baptiste Thierrée, the grandson of filmmaker Charlie Chaplin and the great-grandson of playwright Eugene O’Neill.
Thierrée made his stage debut aged four in 1978, appearing alongside his older sister, Aurélia Thierrée, at his parents’ small circus, Le Cirque Imaginaire. He toured with the circus and its follower, Le Cirque Invisible, throughout his childhood and teenage years, until 1994. Due to this, he was taught by tutors up to the age of twelve, when he was enrolled at the American School of Paris. Later he studied at the Piccolo Teatro in Milan, the CNSAD and the Acting International in Paris, and the Harvard Theater School in the United States. In 1991, aged fifteen, he made his film debut in the role of Ariel in Peter Greenaway's film Prospero's Books, and has since appeared in several films. He was nominated for the César Award for Most Promising Actor in 2006 for his role in Antoine de Caunes’s film Twice upon a Time (2006).