Manuel Garcia O’Kelly (Mannie)
Manuel is the novel's central character, 'The Moon is Harsh Mistress.' Manuel is depicted as the hero and future superman who is guaranteed to survive any future tribulations. Mannie is also the novel's narrator, aged 32. Mannie is also a freelance computer expert.
Professor Bernardo de la Paz
Professor Bernardo is a rebellious person throughout the novel. Despite being a good lecturer, Bernardo joins other rebels to revolt against conventional and communal norms.
Wyoming Knotts (Wyoh)
Wyoh is a predominant revolutionary figure in the novel, and she makes vital decisions that shape the rebellious group. Unfortunately, Wayoh’s opinions are understated and undervalued by other revolution members simply because she is a woman.
Mike (Mycroft Holmes)
Mike is an ordinary man who has supercomputer skills to prank. Mikes issues a high-value paycheck to a junior. Mannie is recruited to fix the problem created by Mike, and the two become best friends. Mike is also consulted to compute complex computer solutions by Prof and Mannie.
The Chairman
The Chairman is a strong character in charge of the FNIC (Federal Nations Investigation Committee.) The Chairman is not given a specific name because he is the clockwork of the Federation. Similarly, the Chairman is a significant figure because he regulates laws and rules governing the Luna Free State.
Senator Mort the Wart
Mort is depicted as an unfortunate gentleman who offers Loonies the protection they do not need. Loonies strongly believe that they are protected by the regulations and policies of the Lunar Authorities.
Juan Alvarez
Alvarez is the Security Chief of Luna. The Lunar Authority helps Alvarez to execute laws. Unfortunately, Alvarez is lonely and frightened because he polices people who are not interested in being policed.
Stuart Rene Lajoie
Stuart is a tourist visiting the Moon and its environs. Stuart breaks the traditions and customs of Luna when he tries to kiss a local woman.
Hazel Meade
Hazel is a minor character who plays a significant role in helping Mannie and Wyo run away from the rally that endangered their lives.
