United States of Tara: Cast Rate: –☹️ Very Bad🙁 Bad😐 Average🙂 Good😃 Excellent🤩 Super! ★ Save Rating✔ Rating Saved! Notify me: –about new episodeabout new seasonabout end of season Subscribe✔ Subscription Saved! United States of Tara Comedy, Drama – 6/20/11 United States http://www.sho.com/united-states-of-tara GeneralEpisodesCastCharactersGallery Cast See full cast → Toni Collette as Tara Gregson Toni Collette as Tara Gregson John Corbett as Max Gregson John Corbett as Max Gregson John Corbett as Max Gregson Keir Gilchrist as Marshall Gregson Keir Gilchrist as Marshall Gregson Brie Larson as Kate Gregson Brie Larson as Kate Gregson Rosemarie DeWitt as Charmaine Craine Rosemarie DeWitt as Charmaine Craine Rosemarie DeWitt as Charmaine Craine Patton Oswalt as Neil Michael J. Willett as Lionel Michael Hitchcock as Ted Mayo Nate Corddry as Gene Stuart Matthew Del Negro as Nick Hurley Eddie Izzard as Dr. Hattarras Andrew Lawrence as Jason Bailey McAlevey as Baby Cassie Rowan McAlevey as Baby Cassie Valerie Mahaffey as Dr. Ocean