Pilot of the Rocinante and former MCRN officer. A Martian with a warm, garrulous personality that masks genuine melancholy about his failed family life. One of the finest pilots in human space, with an instinctive feel for orbital mechanics and ship handling.

Martian marine gunnery sergeant who witnesses something on Ganymede that her government wants buried. One of the most physically formidable characters in the series, she is also one of its most principled - a soldier who cannot stop asking whether the orders she follows are worth following.