evanna patricia lynch (born 16 august 1991) is an irish actress. she became famous by playing "luna lovegood", a supporting character in the "harry potter" movie series. lynch was cast as luna at the age of 14, having acted only in school plays before. from 2007 to 2009, she starred in two harry potter movies and their video games. she later returned for the final movies ("harry potter and the deathly hallows") and the first of the movie's two video games. lynch's work on the series has earned her two award nominations.