Guest Stars Agam Darshi as Dr. Singh 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 Blu Mankuma as Gen. Cassius Giles USAF Amitai Marmorstein as Cliff 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