Chicago Shakespeare Theater’s (CST) Mary Stuart looks at the final moments in the rivalry between Queen Elizabeth I of England, and her cousin, Mary, Queen of Scots. The play grapples with the ironies of their powerful birthrights, against the powerlessness that women — even queens — endured during England’s Elizabethan era. For International Women’s Day, we’re joined by the main actors in Mary Stuart. Making their CST debuts are, K.K. Moggie, who plays Mary Stuart, and Kellie Overbey, who plays Queen Elizabeth I. They’ll discuss the play, their roles, and the similar historical dynamics of patriarchy, past and present. Revised by Peter Oswald and directed by Jenn Thompson, Mary Stuart runs at CST through April 15, 2018.