Oona Castilla Chaplin (born 4 June 1986) is a Spanish actress.
Her roles include Talisa Maegyr in the HBO TV series Game of Thrones, The Crimson Field and the series Taboo.
A member of the Chaplin family, she is the daughter of actress Geraldine Chaplin, the granddaughter of English filmmaker and actor Charlie Chaplin, and the great-granddaughter of American playwright Eugene O’Neill. She was named after her maternal grandmother Oona O’Neill, Charlie’s wife. Oona Chaplin was born in Madrid to Anglo-American actress Geraldine Chaplin and Chilean cinematographer Patricio Castilla. Her paternal grandmother is Mapuche. She was named after her maternal grandmother, Oona O’Neill Chaplin. She spent her childhood mostly in Spain, Great Britain, Switzerland, and Cuba, but also travelled often because of her mother’s film career. She started dancing ballet, salsa and flamenco at an early age.
When Chaplin was fifteen, she began studying at Gordonstoun School in Scotland on a drama scholarship. During her time there, she appeared in several school plays, touring the United Kingdom in an adaptation of Romeo and Juliet and impersonating her grandfather in the role of Bottom in an adaptation of A Midsummer Night’s Dream, which was performed at the Edinburgh Festival Fringe. After leaving Gordonstoun, she was accepted to the Royal Academy of Dramatic Art, from which she graduated in 2007. Oona has a half-brother named Shane from her mother’s previous relationship with film director, Carlos Saura. Since graduating from RADA, Chaplin has acted in mainly British and Spanish short and feature films. She has played alongside her mother in three feature films: Inconceivable, ¿Para qué sirve un oso? and Imago Mortis. Chaplin has also had several supporting roles in British and American television. In 2010, she appeared as a Brazilian cage dancer in ITV’s Married Single Other (2010), followed by roles as the wife of one of the main characters, Hector Madden, in the BBC period drama The Hour (2011–2012), as Dr. John Watson’s girlfriend in an episode of BBC’s Sherlock (2012) and as Talisa Maegyr in HBO’s Game of Thrones (2012–2013). She plays Kitty Trevelyan, a lead character, in the BBC drama The Crimson Field (2014) and Ruth Levinson, wife of Ira Levinson, in The Longest Ride (2015). Chaplin stars as Zilpha Geary in the eight-part historical fiction series Taboo (2017) on BBC One and FX. Chaplin joined the cast of James Cameron’s Avatar sequels in June 2017. Her character, named Varang, is described as “a strong and vibrant central character who spans the entire saga of the sequels”.