Katherine Elizabeth "Katie" McGrath is an Irish actress from Ashford, County Wicklow, Ireland.
She is best known for portraying the Lady Morgana Pendragon on the BBC One show Merlin. McGrath is also known for portraying Zara Young in the successful American science-fiction movie Jurassic World. McGrath has also appeared as Jules Daly in Drama TV movie A Princess for Christmas. She appeared as Lucy Westenra in Horror TV Show Dracula. McGrath has also appeared in the film The Throwaways as Gloria Miller. McGrath starred in the movie Leading Lady where she played the role of Jodi Rutherford, Sarah Bennett on the Chiller TV series Slasher, and Elizabeth Carruthers on Netflix's Frontier. McGrath is set to appear in King Arthur: Legend of the Sword as Elsa in 2017. Katie can currently be seen playing the role of Lena Luthor on the CW TV series Supergirl.