During the game, the player receives voice communications and finds holograms of varius story characters.
When her mother dies and her father wishes her to join him on the moon, she refuses and takes care of her younger sister Kathy until Isaac has her sister taken away anyway. Recruited straight out of university, Claire Johanson designed the Taurus V rocket for the Fortuna mission. Claire was eager to join the team to uncover the fates of her father Isaac and sister Kathy on the moon after the 2054 Blackout.
Issac Johanson developed the MPT Network to enable Earth to be powered from the moon. He joins the newly formed Lunar Council to realize his invention and moves to the moon to oversee its construction. After his wife dies, he gains legal guardianship over his younger daughter Kathy and brings her to the moon. After the Blackout, Issac sends one remorseful last communication to Claire on Earth, apologizing for what he did.
Maria was one of three survivors of the Huygens Research Facility cryosleep generator malfunction. After the accident she returns to Earth and actively organizes the Fortuna rescue mission together with Claire Johanson after the Blackout.
Dr. Rosa Laverde
Rosa was one of three survivors of the Huygens Research Facility cryosleep generator malfunction. She stayed on the moon to continue her work from the Copernicus Moonbase. When she learns about McArthur's plans for the moon colony, she tries to reason with him but is overruled by him and Isaac Johanson.
Edgar was one of three survivors of the Huygens Research Facility cryosleep generator malfunction. He stayed on the moon to be the operator of Reinhold Mining Facility.
Sarah is a software engineer on the Pearson Spacestation and has regular contact with Maria Gonzalez about upgrading her ASE unit. After the Blackout, she is sent down to the moon's surface together with mechanic Rolf Robertsson to investigate the event. When she is locked-in on the station's crew quarters because of a rogue ASE unit, Rolf has to leave without her. Left behind, Sarah continues the search for the Blackout's reason alone and accompanies the player through the levels via voice recordings.
A Lunar Council member, McArthur is the Chief of Transportation and Security for the WSA on the moon. He develops his plan for the survival of humanity in secret, until leading the moon colonists Outward after the Blackout.