Guest Stars Laara Sadiq as Carol Bryce Peter Weller as Alistair Peck Co Starring Duncan Spencer as Agent Harrison Marie Avgeropoulos as Waitress Richard Harmon as Teenager Jennifer Kitchen as Female CSI Jackson Berlin as ND Agent / Agent #2 Andrew McIlroy as Professor Lime Tariq Leslie as Assistant M.E. Michael Vairo as Commuter Zoltan Buday as Worker Robert Gauvin as Uniform Cop C. Douglas Quan as M.E. Tech Kristen Ross as Arlette Turling Uncredited Michael Cerveris as September