Katherine Elizabeth "Katie" McGrath (born 1983) is an Irish actress and model. She is best known for playing Morgana in the BBC One TV series Merlin. She currently appears as Lucy Westenra on the British-American horror drama TV series Dracula, which started airing in autumn 2013.

 

Katie McGrath portrays Lucy Westenra, in the TV series, Dracula. In this role, she is a rich society girl who harbours secret romantic feelings for Mina, her best friend.