Watch: 'Grey's Anatomy' Kills Off Season 22 Character in Heartbreaking DeathCaterina Scorsone and E.R. Fightmaster are continuing their Grey's Anatomy love story offscreen. Three years after their characters in the Shonda Rhimes series briefly dated, the pair confirmed their real-life romance during an outing in Los Angeles March 23. During the outing, Caterina, who has played Dr. Amelia Shepherd since season seven of Grey's, donned a green T-shirt with the word "Oui" emblazoned in white on the front, as well as a matching baseball cap, jeans and white sneakers. E.R.