On Habitat 7, Dusty Kirkland and Greer separated from an injured David Fisher to look for help. While Kirkland is shot dead by the kett, Greer is captured by the hostile aliens but was later rescued by Ryder Jr. Upon Pathfinder Ryder's return to Ark Hyperion's Cryo Bay, he can be found receiving medical attention. He then leaves the Pathfinder team because of his traumatic experience.
- During the prologue, there is another member of Ark Hyperion named Lucas Greer. It is unknown whether the two are related or not.