Mad Men Star Elisabeth Moss to Join Keira Knightley in London's The Children's Hour

Elisabeth Moss, best known for her role as Peggy Olson on hit television show Mad Men, will be joining the previously announced Keira Knightley in a revival of Lillian Hellman's The Children's Hour in London's West End. Ian Rickson is set to direct.

The production will mark the West End debut for Moss, who first appeared on Broadway in David Mamet’s Speed the Plow in 2008. She is also known for her role as Zoe Bartlett on TV’s The West Wing and the films Get Him to the Greek, Did you Hear About the Morgans? and Girl, Interrupted. She has two new films in the works: On the Road and Darling Companion.

The Children's Hour takes place in an all-girls boarding school. When a troubled teenager starts to spin a web of deceit, all around her are soon caught up in it. Karen Wright (Knightley) and Martha Dobie (Moss) have worked for years to establish their school, and now, with the school flourishing and Karen on the verge of marriage, their lives and loves finally appear secure. However, when malicious student Mary runs away from the school and seeks to avoid being sent back, she draws on hearsay, gossip, and her own imagination, to concoct a story that threatens the school, the marriage, and their entire futures. The play opened on Broadway on November 20, 1934 and played for 691 performances.