Kate Fleetwood, who plays Goneril, appeared most recently at the National Theatre in London Road, and she was nominated for a Tony for her performance in Rupert Goold's Macbeth. Anna Maxwell Martin (Regan)'s stage credits include Measure for Measure (Almeida), Cabaret (Lyric) and His Dark Materials (National).
Olivia Vinall, who will play Cordelia, is currently starring as Desdemona in Nicholas Hytner's production of Othello at the NT Olivier with Adrian Lester and Rory Kinnear. Her other stage credits include Romeo and Juliet and The Last Cuckoo.
The production, which marks Mendes' first return to the National Theatre since 1998, will open in January 2014.