Supernatural 11×08 “Just My Imagination” – Sam (Jared Padalecki) is shocked when his childhood imaginary friend Sully (guest star Nate Torrence) makes an unexpected appearance. Sam can’t understand why he’d see Sully now but what’s even more surprising is that Dean (Jensen Ackles) can see him, too. Flashbacks reveal young Sam’s friendship with Sully and why he needed him. Richard Speight, Jr. directed the episode written by Jenny Klein (#1108). Original airdate 12/2/2015.