Caterina Scorsone is a Canadian-American actress. She is best known for playing Dr. Amelia Shepherd on the ABC medical drama Grey's Anatomy (2010–present) and its spin-offs Private Practice (2010–2013) and Station 19 (2018–present). Prior to this, she made her debut as a child actor on the Canadian children's program, Mr. Dressup. She also appeared in a number of films, including 2010's Edge of Darkness and 2014's The November Man. Other television credits include Jess Mastriani on Missing, Callie Wilkinson on Crash, and Alice Hamilton on Alice.

Amelia Frances Shepherd, M.D., F.A.C.S. is a fictional character on the ABC American television Grey's Anatomy medical drama and the spin-off series Private Practice, portrayed by Caterina Scorsone. In her debut appearance in season 3, Amelia visited her former sister-in-law, Addison Montgomery, and became a partner at the Oceanside Wellness Group. In July 2010, it was reported that she was promoted to series regular for season 4, after appearing in the final five episodes of season 3. She remained in the series until the final episode.