In the Grey’s Anatomy episode “Good Shepherd,” Drs. Amelia Shepherd (Caterina Scorsone) and Link Atticus (Chris Carmack) travel to New York to operate on a patient with a severe spinal deformity. While in town they’re in for more than they bargained for when Amelia’s sister Nancy Shepherd (Embeth Davidtz) invites them to dinner at her home. Sister Kathleen Shepherd joins them. While serving dessert, the dinner conversation turns sour.
Dr. Kathleen Shepherd is portrayed by actress Amy Acker. She’s known for her roles on The Gifted (Kate Strucker), Suits (Esther Edelstein), Con Man (Dawn Jones), Person of Interest (The Machine / Samantha Groves / Root — see streaming link above), Happy Town (Rachel), Dollhouse (Dr. Claire Saunders), Alias (Kelly Peyton), and Angel (Winifred Burkle aka Illyria), among others. Grey’s Anatomy airs Thursdays at 8 pm on ABC, right before Station 19.