RCE security-systems consultant, no shooter, left alone guarding Elvi in the besieged surface office and convinced she's about to die.
Cassie is a security-systems consultant on Royal Charter Energy's expedition — hired to design shift schedules and surveillance networks, not to shoot people. After Reeve's team is killed, she is the last RCE security presence on the surface, holed up in the locked-down office guarding the witness Elvi Okoye. Ashen and red-eyed, she confesses to Dimitri Havelock over comm that she can't hold it together, that the colonists could cut through the walls or blow the place, and that RCE should have dropped rocks from orbit instead of ever landing.
Believing she may die, she asks Havelock to tell a food engineer on Europa, Hihiri Tipene, that she's sorry — and to bring her a sandwich. Adolphus Murtry promises a team in two hours and gives her one job: keep Doctor Okoye breathing until they land.
A woman with ashy-colored skin and red-lined eyes on the comm feed, shaken and weeping but not breaking.
RCE security consultant; the lone, unwilling defender of the witness Elvi during the siege.