Guest Stars Jesse Williams as Dr. Jackson Avery Robert Baker as Dr. Charles Percy Nora Zehetner as Dr. Reed Adamson Mitch Pileggi as Larry Jennings Alanna Masterson as Hillary Boyd Erica Gimpel as Bethany Anderson Derek Webster as Paul Anderson Khamani Griffin as Wallace Anderson Caroline Choi as Laura Young Angelo Tiffe as Trey Boyd Nealla Gordon as Jill Boyd