Oona Castilla Chaplin (Spanish: [ˈuna kasˈtiʎa ˈtʃaplin]; born 4 June 1986) is a Spanish actress. Her roles include Talisa Maegyr in the HBO TV series Game of Thrones, Kitty Trevelyan in the BBC drama The Crimson Field, and Zilpha Geary in the series Taboo.