úrsula corberó delgado (born august 11, 1989) is a spanish actress. she is mainly known for her roles as ruth gómez in "física o química" (2008–2010), margarita de austria in the television series "isabel" (2014) and marta in the comedy movie "cómo sobrevivir a una despedida" (2015). she received international popularity after playing the role of tokyo in the antena 3 (later, netflix) series "la casa de papel" ("money heist"; since 2017).