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.
Catastrophe and Arsyn were initially partners, fighting off the bad and guarding the peace until the point the latter was revealed to be the heroine's real enemy. Catastrophe is slowly starting to recover both physcally and spiritually only to commence the train for her revenge and face her nemesis.
