Natalia Gastiain Tena (born November 1, 1984) is an English actress of Spanish heritage played Nymphadora Tonks in the ''Film/HarryPotter'' film series. She was not familiar with the series before she auditioned for the role of Tonks, but impressed David Yates with her energy, as well as by accidentally crashing into a table, much like Tonks.

She is active on the convention circuit, and both sings and plays the accordion in the band Molotov Jukebox. After ''Harry Potter'', herbiggest role has been as Osha the Wildling on ''Series/GameOfThrones'', and her performance influenced Creator/GeorgeRRMartin to expand Osha's role in later books of ''Literature/ASongOfIceAndFire''.
* ''Film/AboutABoy'' (2002) as Ellie
* ''Film/HarryPotterAndTheOrderOfThePhoenix'' (2007) as Nymphadora Tonks
* ''Film/HarryPotterAndTheHalfBloodPrince'' (2009) as Nymphadora Tonks
* ''Theatre/{{Othello}}'' (2009 production) as Desdemona
* ''Film/{{Womb}}'' (2009) as Rose
* ''Film/HarryPotterAndTheDeathlyHallows'' (2010-2011) as Nymphadora Tonks
* ''Series/GameOfThrones'' (2011-2016) as Osha
* ''Film/TonightYoureMine'' (2012) as Morello
* ''Series/BlackMirrorWhiteChristmas'' as Jennifer (2014)
* ''Series/TheRefugees'' (2015) as Emma.
* CuteClumsyGirl: Has played at least one with Tonks.
* FriendToAllChildren: At Florida Supercon, a fan came by with her baby. [[Main/{{Adorkable}} Tena literally stopped everything so she could take a picture with the baby]].
* HarshVocals