Chaplin was born in Windsor Berkshire England the son of Cynthia a teacher and Peter Greenwood CBE a civil engineer He has one sister Rachel and one brother Justin Chaplin became interested in acting as a teenager after acting in a theatrical production in his school years at the Princess Margaret Royal Free School At the age of seventeen he enrolled at the Guildhall School of Music and Drama in London He pursued his early acting career between odd jobs as an office worker and for a while was employed as a statistician with the London Transport Authority Chaplin made his professional acting debut in the 1990 television film Bye Bye Baby He went on to appear in a number of other television films and miniseries including The Bill 1990 The Final Cut 1995 and The Lost World 1999 Chaplins breakthrough film role came in 1996 when he starred opposite Uma Thurman and Janeane Garofalo in the romantic comedy The Truth About Cats Dogs The film was a critical and commercial success and it helped to establish Chaplin as a rising star Chaplin has since gone on to star in a number of other successful films including Washington Square The Thin Red Line Birthday Girl Murder by Numbers Stage Beauty The New World The Water Horse Legend of the Deep Dorian Gray Cinderella Snowden The Legend of Tarzan and The Dig Chaplin has also had a successful career on television He starred in the BBC sitcom Game On 19951998 and he has also appeared in the television series Mad Dogs 20112013 and The Nevers 2021present In addition to his acting career Chaplin is also a musician He plays the guitar and the piano and he has written songs for a number of films Chaplin is married to the actress Amanda Abbington They have two children together