Susan Blackwell is an American actress, writer, and singer, best known for playing characters based on herself in the original musicals. She has appeared in films and television shows including Master of None, Madame Secretary, The Blacklist, Succession, Law & Order, P.S. I Love You (2007), After the Wedding (2019) and Yes God Yes (2019). She also created and hosts her own talk show, Side by Side by Susan Blackwell on Broadway.com.