Marvin was the AI system tasked with maintaining Copernicus Station, but after the rifts appeared he was somehow convinced to allow Doctor Matthew Walters to release his ‘bugs’ around the colony. Marvin initially assisted the party’s investigation of Copernicus, until they initiated an overload of the fusion reactor to destroy Enlil, at which point he turned nasty. Despite pitting powered armour and mechs against the party, Marvin could not prevent them from destroying the facility and escaping.