PHOTO ARCHIVE: Cynthia Nixon Onstage

Cynthia Nixon celebrates a birthday April 9. Playbill.com offers a look back at a theatrical career that began with her award-winning performance in The Philadelphia Story at age 14.

Nixon made her stage debut at age 14 in The Philadelphia Story, following up her award-winning performance by appearing in two Broadway shows simultaneously with Hurlyburly and The Real Thing.

Other notable credits include The Heidi Chronicles, Angels in America and The Rabbit Hole.