Brooke Smith is an American actress, photographer and author, best known for her roles as Dr. Erica Hahn on the ABC medical drama series Grey's Anatomy, as Sheriff Jane Greene on the A&E horror series Bates Motel, and as Catherine Martin in the 1991 film The Silence of the Lambs, along with roles in several movies and guest starring and recurring appearances in many television shows including Big Sky and Them. Wikipedia