Guest Stars Michael Kelly as Mark Snow Ken Leung as Leon Tao Julian Sands as Alistair Wesley Geneva Carr as Liz Picket Erica Leerhsen as Amy Sharon Leal as Dr. Madeleine Enright Bryce Pinkham as Leland Rains Geoffrey Cantor as Sebastian Alta Co Starring Aaron Isaacs as Beat Cop Lohrasp Kansara as Gang Member Gilbert Cruz as Security Manager Sam Freed as Oliver Veldt Mia Ellis as ER Nurse Nick Stevenson as Park Uni Uncredited Annie Parisse as Kara Stanton