4 guest cast members in this episode also had roles in Grey's Anatomy (2005). Amanda Foreman, who plays Katie Kent, also played Nora in an episode of Grey's Anatomy. Tessa Thompson, who plays Zoe Salter, played Camille Travis in 2 episodes of Grey's Anatomy. Robin Weigert, who plays Amelia Sawyer, played Karen Lorenz in an episode of Grey's Anatomy. John Getz, who was Mr Kent, Katie's father, also played Michael Breyers in 2 episodes of Grey's Anatomy.