Quinn McKenna (Boyd Holbrook) is an Army Ranger sniper who is now a mercenary and first encounters the Predator on a mission in Mexico. He is a soldier through and through, skilled and steely. Holbrook previously appeared in “Logan,” “Morgan” and Netflix’s TV series “Narcos.”
Dr. Casey Bracket (Olivia Munn) is the US government’s go-to expert for biological evolution and is called upon when the Predator appears. When things go awry, she goes rogue together with the Loonies. Munn, the most prominent member of the cast, has played Psylocke in “X-Men: Apocalypse” and was a host of “Attack of the Show!”
Traeger (Sterling K. Brown) is the dangerous leader of the shadowy government endeavor Project Stargazer and will turn on anyone if it suits his needs. He has appeared on “This Is Us” and “Black Panther.”
Rory McKenna (Jacob Tremblay) is Quinn’s gifted, autistic son who finds he can decipher the Predator’s tech. He received rave reviews as Brie Larson’s son in the film “Room.”
Nebraska Williams (Trevante Rhodes) is the disgraced soldier who is the de facto leader of the Loonies until Quinn arrives.
Coyle (Keegan-Michael Key) uses humor to mask his fear and is played by an award-winning comedian behind Comedy Central’s “Key & Peele.”
Baxley (Thomas Jane) suffers from Tourette’s Syndrome; Jane has starred in “The Punisher,” “The Mist” and “The Expanse.”
Lynch (Alfie Allen) is the Brit member of the Loonies; Allen plays Theon Greyjoy on HBO’s “Game of Thrones.”
Other actors: Jake Busey as Dr. Sean Keyes, Yvonne Strahovski as Emily McKenna, Augusto Aguilera as Nettles and Brian Prince as the Predator.