DEREK IS VISITED BY HIS ESTRANGED SISTER, AMELIA SHEPHERD,
ON ABC'S "GREY'S ANATOMY"
Guest Starring "Private Practice's" Caterina Scorsone as Dr. Amelia Shepherd
James Tupper ("Men in Trees") Guest Stars "Superfreak" - When Derek receives an unexpected and unwelcome visit from his estranged sister, Amelia, issues between the siblings -- both past and present -- come to the surface; the Chief tries to help Alex when he notices that he's refusing to use the elevators after his near-fatal shooting; and Meredith and Derek continue their efforts to ease Cristina back into surgery after her post-traumatic stress, on "Grey's Anatomy," THURSDAY, OCTOBER 7 (9:00-10:01 p.m., ET) on the ABC Television Network.
