Guest Stars Agam Darshi as Dr. Singh Blu Mankuma as Gen. Cassius Giles USAF Amitai Marmorstein as Cliff Emily Holmes as Naomi Overson Andrew Airlie as Marcus Trumaine Rukiya Bernard as Tori (Victoria) Mendes Zak Santiago as Captain Adam Greydon Reid as Colonel Poterson Kett Turton as Major Kensington Peter New as Nillwood Michael P. Northey as Belphegor Michael Rogers as Sgt. Sloan Don Thompson as Miles Maxford Paul McGillion as Raymond Vince Jaylee Hamidi as Keiko Nakamura / Leviathan