Kathleen Erin "Kate" Walsh (born October 13, 1967) is an American film and television actress, currently known for her role as Dr. Addison Montgomery on the ABC dramas Grey's Anatomy and Private Practice.
A spoiled rich girl named Sabra Tanner (who feels ignored by her rich mother) teases and harasses her college schoolmates even though she does not know why she wants to hurt all the people around her. Her sociopathic antics bring bad consequences for her when her actions drive one of her classmates to suicide. Realizing she is completely ostracized, Sabra walks into the ocean to drown herself.
