
Murderbot Diaries · Character
Supervisor Leonide
Also known as Leonide
- Supporting
- First seen · Book 7 · Ch. 6
Supervisor Leonide is a human woman with smooth brown skin enhanced by subtle cosmetics, giving her a perfect, issue-free complexion like those in entertainment serials. Her dark hair is coiled neatly to the back of her head, and she wears decorative metallic chips and gems around her right ear as adornments. She is dressed in an expensive environmental suit, and her face shows expressive features including tilting eyebrows, a mouth capable of sad smiles or thin pressed lines, and a tendency for a confused crease between her brows when puzzled.
- Gender
- female
- First appears
- Book 7 · Ch. 6
- Books
- 2
Supervisor Leonide first appears in System Collapse as a polished corporate operative whose flawless presentation and interface enhancements mask a calculating adversary to rogue SecUnit Murderbot. By Platform Decay her authority collapses under catastrophic shrapnel injuries, transforming her from an immaculate supervisor into a respirator-dependent casualty whose final inert form underscores the lethal cost of corporate conflict. Across the two books she shifts from an active antagonist to a tragic figure whose personal stakes—revealed through her relationship with her child Janity—add layers of complexity to her corporate enmity.
Description
Supervisor Leonide is a human woman with smooth brown skin enhanced by subtle cosmetics, giving her a perfect, issue-free complexion like those in entertainment serials. Her dark hair is coiled neatly to the back of her head, and she wears decorative metallic chips and gems around her right ear as adornments. She is dressed in an expensive environmental suit, and her face shows expressive features including tilting eyebrows, a mouth capable of sad smiles or thin pressed lines, and a tendency for a confused crease between her brows when puzzled. Leonide possesses warm brown skin and dark hair worn in a less elaborate style. Her face features strikingly perfect, symmetrical proportions reminiscent of an actor. She wears a beige-and-white long shirt over loose flowy pants, with a plain silver interface bud visible in one ear. Her overall presence is composed and professional.
Connections
Family & partnersFriends & mentorsRivals

Janityfather
Revealed in Platform Decay, Leonide is Janity’s father; their complex family dynamic is entangled with the corporate conflicts that ultimately lead to her demise.

Dr. Mensahadversary
Leonide’s corporate role places her in direct opposition to Dr. Mensah’s interests; this antagonism intensifies in Platform Decay as Leonide’s physical decline fails to soften her adversarial stance.

Murderbotconflicting source relationships
Leonide begins as a corporate rival who recognizes and confronts the rogue SecUnit, then becomes an outright hostile figure viewed by Murderbot as an adversary after her injuries and continued corporate allegiance.

Faraiadversary
Farai remains wary of Leonide throughout the hostage and extraction crises, their enmity persisting even as Leonide’s injuries reduce her from active supervisor to incapacitated threat.
Story so far
BOOK 7System Collapse
- Leonide arrives in an expensive environmental suit, her cosmetically enhanced appearance projecting corporate authority.
- She recognizes and directly engages Murderbot, escalating tension into internal mutiny.
- Her expressive features—tilting eyebrows and sad or pressed-mouth expressions—reveal her shifting reactions to unfolding events.
BOOK 8Platform Decay
- Shrapnel injuries leave Leonide dependent on emergency respirators and injectors, her clothing marked by violence.
- She is positioned as an antagonist to Dr. Mensah and a threat to Farai during hostage and extraction conflicts.
- Her familial tie to Janity surfaces amid the corporate crisis, complicating her role.
- By the end she lies inert beside additional interfaces, her form arranged as though she had simply closed a hatch and fallen.
Key events
- Book 7
Ch. 9Barish-Estranza Coup AttemptAdelsen shoots Leonide during a meeting; Murderbot thwarts the assassination, disables hostile SecUnits, and guides survivors to safety. - Book 8
Ch. 4Torus Infiltration and Safehouse RaidMurderbot and Three infiltrate Barish-Estranza's planetary torus; a raid kills Leonide, forcing the group into maintenance tunnels with her data packet.
Gallery
Book 7: System Collapse
Book 8: Platform Decay
Appearances
Meet Supervisor Leonide in Bookworm
Meet Supervisor Leonide in your EPUB — spoiler-safe to the book you're on.

