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Oona Castilla Chaplin (born 4 June 1986 in Madrid, Spain) is a Spanish-British actress of English, American and Chilean descent.

She is one of ''those'' Chaplins--granddaughter of Creator/CharlieChaplin and Oona O'Neill, daughter of Charlie and Oona's daughter Creator/GeraldineChaplin, and great-granddaughter of playwright Creator/EugeneONeill. In her youth Oona traveled around the world, visiting Switzerland, Cuba, America, and other countries. At age fifteen, she won a drama scholarship to Gordonstoun school in Scotland, where she began acting in school plays. After graduating from Gordonstoun, she studied at the Royal Academy of Dramatic Art. Her first starring role was in the Spanish horror film ''Imago Mortis'' alongside her mother. Oona has since appeared on several British TV shows, such as ''Married Single Other'', ''Series/{{Sherlock}}'', ''Series/TheHour'', and ''Series/GameOfThrones''.

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!!Roles

* ''Theatre/RomeoAndJuliet'' as Juliet
* ''Theatre/AMidsummerNightsDream'' (2003 production) as Bottom
* ''Series/{{Spooks}}'' (2007 episode "The Virus, Part 2") as Kate
* ''Inconceivable'' (2008) as Laura Chapel
* ''Series/SpooksCode9'' (2008 episode "Episode 2") as Kate
* ''Film/QuantumOfSolace'' (2008) as the receptionist at Perla de las Dunas
* ''Imago Mortis'' (2009) as Arianna
* ''Pelican Blood'' (2009) as Linda
* ''Married Single Other'' (2009 episodes) as Fabiana
* ''¿Para qué sirve un oso?'' (2010) as Rosa
* ''Film/TheDevilsDouble'' (2011) as Beauty
* ''Series/TheHour'' (2011) as Marnie Madden
* ''Series/{{Sherlock}}'' (2012+) as Jeanette
* ''Series/GameOfThrones'' (2012-2013) as Talisa Maegyr
* ''Series/{{Dates}}'' (2013) as Mia
* ''Series/BlackMirror'' ([[Recap/BlackMirrorWhiteChristmas 2014 Christmas special]]) as Greta
* ''Film/TheLongestRide'' (2015) as Ruth
* ''Series/{{Taboo}}'' (2017-) as Zilpha Geary
* ''Franchise/{{Avatar}}'' as Varang
** ''Avatar 3'' (2024)
** ''Avatar 4'' (2026)

!!Tropes relating to her work:
* AbilityOverAppearance:[[invoked]]
** Says she was surprised that she was cast as Robb Stark's love interest - feeling sure that the producers wanted a white EnglishRose sort. The show runners were inspired to change the character from Jeyne - a Westerosi - to Talisa - a Volantene - to explain her darker features.
** It was a similar case with ''Series/TheHour''. They wanted a white actress but she was told "you're not an EnglishRose but you can do this."
* {{Corpsing}}: A variation. When filming the infamous Red Wedding [[spoiler: Oona opted to die with her eyes open, but because of the emotional nature of the scene, everyone on set was crying. So the director had to call cut more than once to tell Oona to stop crying, since she was meant to be a corpse]].
* FakeBrit:[[invoked]] She's put on a flawless English accent for ''Series/TheHour'', ''{{Series/Sherlock}}'', ''Series/BlackMirror'' and ''Series/GameOfThrones'' (which isn't set in England but everyone uses those accents anyway). However, she's English on her mother's side.
* {{Improvisation}}: Her film ''Realive'' was based on a lot of improvisation from her.
* MsFanservice: In a few music videos she did in Spain. ''Series/GameOfThrones'' also had her go topless in a sex scene, and shows her bare backside later when lying on a bed.
* NomDeMom: Not exactly, since she has the surnames of both parents (Castilla and Chaplin) as per Spanish tradition, but as per tradition, her mother's surname comes second and thus can be mistaken for her only surname, and she is known professionally as Oona Chaplin.
* RealLifeRelative:[[invoked]] Her mother Geraldine stars with her in the film ''Anchor & Hope''.
* ThoseTwoActors:[[invoked]] She's starred with good friend Natalia Tena in ''Series/GameOfThrones'' and ''Anchor & Hope'', and also in her music video for "Neon Lights" (as part of Natalia's band Molotov Jukebox).
* WhatCouldHaveBeen:[[invoked]] She was going to play Jeyne Westerling from the books on ''Series/GameOfThrones'', but for whatever reason the show runners changed the character to a healer from Volantis who has a more straightforward love story with Robb Stark (as opposed to the ShotgunWedding in the book). George RR Martin then had them rename the character Talisa instead.
* WhatTheHellIsThatAccent: She has quite the blend of English, American and Spanish in her natural voice - which is to be expected, given her varied background. She has lived in Spain, Cuba, America and Scotland.