
The Expanse · Character
Clarissa Mao
Also known as Clarissa, Clarissa Melpomene Mao, Miss Koh
- Major
- First seen · Book 3 · Ch. 7
Clarissa Mao is a major character in The Expanse (Book 3).
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- Gender
- female
- First appears
- Book 3 · Ch. 7
- Books
- 1
Description
A human woman, formerly described as popular and beautiful, with a face that can look fuller and rounder under different gravity conditions. Her hair is described as red in the appearance notes, and at different times is worn loose, in a braid, or in a ponytail. She is presented as a normal-looking young woman, though she can appear small and frail beside armored soldiers. Her body has implanted glands and combat modifications. Clothing varies from civilian work clothes and contractor uniform to an EVA suit, pale pink jumpsuit, and Tachi-imprinted jumpsuit.
Connections
Family & partnersFriends & mentorsRivals
- JM
Jules-Pierre Maodaughter
Clarissa is Jules-Pierre Mao’s daughter. Her father’s arrest and their shared history shape her identity and guilt; she thinks of him while imprisoned and sees a resemblance between him and Cortez.

Juliette Maoyounger sister
Clarissa admired and resented Julie, measuring herself against her accomplished older sister. Julie’s departure from the family became a formative rupture and a source of Clarissa’s resentment.
- RM
René Maosister
Clarissa and Julie are daughters of the Mao family; the excerpt’s references to Clarissa’s family and Julie’s sister establish their sibling relationship.
- TF
Tilly Faganconflicting source relationships
Tilly is Clarissa’s aunt. She offers her tenderness and comfort in prison, allowing Clarissa to confess her crimes and grieve Ren.

Alex Kamalcrewmate
Alex helps transport Clarissa aboard the Rocinante and checks that she no longer intends to harm Holden.

Amos Burtoncrewmate
Amos treats Clarissa with casual kindness aboard the Rocinante and helps her work on a damaged hatch, while remaining clear-eyed that she could still be dangerous.

Ashfordsubordinate
Clarissa is part of Ashford’s command group and provides technical assistance when he asks her to work on the bridge systems. She also quietly obstructs his efforts when she believes sacrifice is necessary to protect others.

Bullcustodian
Bull is responsible for security and order aboard the Behemoth while Clarissa is imprisoned. He is willing to keep her confined but considers handing her to the UN for trial.
- C
Cohenunwitting accomplice
Clarissa paid Cohen to plant a transmitter aboard the Rocinante. He says he did not know what the device would do or who had hired her.
- HC
Hector Cortezconflicting source relationships
Cortez persuades Clarissa to help protect Ashford and support the plan to close the Ring. Their bond rests on shared guilt over deaths and a belief that further sacrifice may protect humanity.
- MA
Melba Alzbeta Kohassumed identity
Melba is the identity Clarissa uses while working with the maintenance team and pursuing her plan against Holden; she imagines returning to Clarissa’s life afterward.
- M
Mikelsongroup member
Mikelson is Clarissa’s group supervisor aboard the Thomas Prince, though she has met him only once.
- N
Nikostemporary subordinate
After the disaster, Nikos takes charge of Clarissa’s work on the damaged atmosphere processor and directs her as a technician.
- S
Soledadconflicting source relationships
As Melba, Clarissa leads Soledad’s civilian work team. Soledad turns to her when she cannot face volunteering for transfer to the Thomas Prince.
- SA
Stepan Arsenauunwitting victim
Clarissa recognizes that her actions helped bring Lieutenant Commander Arsenau through the Ring, where he dies in the disaster. She steals his identity card to gain access to equipment for her plans.

Anna Volovodovconflicting source relationships
Anna recognizes Clarissa as dangerous and pursues her, believing she can stop further violence; she ultimately reaches Naomi and Clarissa during their fight.

James Holdenformer target
Clarissa came to disgrace and kill Holden, and her actions put him and his crew in danger. After she helps avert disaster, Holden agrees to take her aboard for transport, though their relationship remains strained.

Naomi Nagataconflicting source relationships
Clarissa attacks Naomi while targeting Holden and his crew; Naomi is seriously injured, though she later agrees not to expose Clarissa’s confession.
- R
Renconflicting source relationships
Clarissa killed Ren. His death remains a source of profound guilt and self-hatred, and she believes his loved ones will sleep easier when she receives justice.
- T
Travinvictim
Travin tries to extort Clarissa into making him a partner in her secret plan. She kills him and the two thugs with him to protect her identity and mission.
Story so far
BOOK 3Expanse 03 - Abaddon’s Gate
Key events
Gallery
Book 3: Expanse 03 - Abaddon’s Gate
Appearances
Next stop
In Book 3
Places
Meet Clarissa Mao in Bookworm
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