Guest Stars Seana Kofoed as Commander Carla Chase Mahina Napoleon as Julie Tennant Enver Gjokaj as Captain Joseph Milius Mark Gessner as CGIS Special Agent Neil Pike Ethan Rains as Dr. Adrian Dunne Caitlin Mehner as Anna Freeloff Adam Aalderks as David Freeloff Jason Downs as Anton Breskov Co Starring Sam Bass as Hulking DSS Agent Mary Thornton as Major Lydia Vail Mark Wilson as State Department Official Nicholas Bonanno as Commander Thomas Kelley Donta Tanner as LCPL Mason Cartwright