The play will be directed by Nancy Meckler, with design by Katrina Lindsay and lighting by Ben Ormerod. Further casting will be announced shortly.
McCormack's stage credits include The 39 Steps, A Doll's House, and Six Characters in Search of an Author. Her film and television credits include Loaded, Braveheart, Spy Game, Lights Out and Dangerous Beauty.
For more information, visit www.rsc.org.uk.