Guest Stars Aaron Douglas as Gordon Rimmer Neil Brown Jr. as Joel Estevez Richard Schiff as Zimmerfield Miguel Sandoval as Colonel Scott Riggins Co Starring Osric Chau as Jacob Vogel Viv Leacock as Gripps Zak Santiago as Cross Michael Adamthwaite as Zed Alison Thornton as Lydia Spring Christian Bako as Ed Eric Keenleyside as Edmund Doyle Fiona Vroom as Wilson Grayson Gabriel as Young Coroner Craig Fraser as Gifford Andrea Ware as Zoo Curator Max Boateng as Traffic Cop