Katie McGrath () is an Irish actress. On television, she has portrayed Morgana Pendragon in BBC One's Merlin (2008–2012), Lucy Westenra on the British-American series Dracula (2013–2014), Saskia in the TV series Secret Bridesmaids Business, Sarah Bennett in the first season of the horror anthology series Slasher (2016), and Lena Luthor on the...