Jovan Adepo as Pvt. Boyce Wyatt Russell as Sgt. Ford Mathilde Ollivier as Chloe Pilou Asbæk as Dr. Wafner Jacob Anderson as Grady Dominic Applewhite Iain De Caestecker as Chase John Magaro as Tibbet Bokeem Woodbine as Eldson Gianny Taufer as Paul, Chloe’s brother Michael Epp Éva Magyar as Aunt Simone, Chloe’s aunt