Kelly O’Sullivan’s theatrical credits include BLKS, This is Modern Art, The Internationalist, Honest, Good Boys and True, The Crucible, and 100 Saints You Should Know (Steppenwolf Theatre); Men on Boats, Bruise Easy, The Humans, Columbinus, and The Dark at the Top of the Stairs (American Theater Company, ensemble member); The Seagull (Goodman Theatre); The Skin of Our Teeth (Remy Bumppo); Bad Jews (Theatre Wit); Hesperia (Writers Theatre); My Wonderful Day, Barrymore nomination for Outstanding Supporting Actress in a Play (The Wilma Theatre); The Lieutenant of Inishmore (Northlight Theatre); Jon (Collaboraction); and Mr. Marmalade, Jeff nomination for Principal Actress in a Play (Dog & Pony Theatre). TV appearances include The Mob Doctor, Battleground, two seasons of Sirens, and The History of Us pilot for CBS. Film appearances include: In Memoriam, Jessica, Sleep With Me, Henry Gamble’s Birthday Party, and Brother Sister. Kelly is a graduate of Northwestern University, The School at Steppenwolf Theatre, and a recipient of a Princess Grace Fellowship Award for Theatre.