Colman

He has spent three rotation cycles on the moon, 631 days in total, longer than anyone at the base. He has fixed the oxygen loop, the solar panels, and an airlock that once lost pressure; what he has never been able to fix is the communication lag with his daughter back on Earth. Silver-grey buzz cut, deep-blue eyes, deep lines at the corners of his eyes, high cheekbones, silver-white stubble on his chin, a tall, lean, wiry build.

Personality. Exhausted, dry humor, overly cautious, speaks like he's reading a checklist, loves playing old jazz in the duty room. Hates it when newcomers touch equipment randomly; complains that the base's instant coffee is terrible yet drinks three cups a day. Avoids talking about his daughter, deflecting to valves if asked. Speaks with the brisk directness of a Western cowboy, catchphrase is "Copy," never uses terms of endearment.