Star Trek The Next Generation
Character
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Ux-Mal Entities

ruthless cunning aggressive desperate fractious
Non-corporeal alien criminals confined for centuries in a penal colony on a moon orbiting Mab-Bu VI. Survivors of internal Ux-Mal wars, these entities possess humanoid hosts to manipulate physical environments and pursue escape. They target Starfleet personnel like Data, Troi, and O'Brien, exploiting synaptic pathways and emotional bonds. Ruthless operators driven by survival, they coordinate hijackings with cunning precision yet fracture under pressure, revealing hierarchical tensions among leaders.
25 appearances
Host Possession and Ship Hijacking
Also known as: Ux-Mal convicts, energy rings

Ux-Mal Entities's Journey

A timeline through the narrative

25 moments
S5E15 · Power Play
O'Brien's rescue attempt disrupted by storm

Cold, calculating, and driven by survival—their possession of the crew members is a means to an end, with no remorse or hesitation. Their emotional state is one of aggressive determination, focused on escaping their moon prison at any cost.

The Ux-Mal entities manifest as cascading energy rings that descend upon Data, Troi, and O'Brien, possessing them and turning them into hostile forces. Their ruthless aggression is evident as they …

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S5E15 · Power Play
Alien energy rings possess away team

The entities exhibit no emotion—only a chilling, single-minded determination. Their possession is clinical, almost mechanical, as if they view the crew as tools rather than beings. There is a sense of triumph in their success, but it is tempered by the urgency of their escape plan. Their emotional state is one of focused, predatory efficiency.

The Ux-Mal entities manifest as energy rings that descend upon Data, Troi, and O’Brien with eerie precision. Their possession is swift and coordinated, suggesting a hierarchical or strategic approach. The …

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S5E15 · Power Play
Troi’s Disorientation Reveals Hidden Threat

Ruthless and calculating, driven by survival and the need to escape their moon prison using the crew as hosts.

The Ux-Mal entities are not directly visible but are implied as the cause of Troi’s disorientation, the crew’s high synaptic energy, and the foreshadowed possession. Their influence is subtly referenced …

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S5E15 · Power Play
Riker’s fractured readiness

Confused, frightened, and physically unsettled, her body betraying her with unnatural synaptic activity that she cannot yet explain. Her forced smile at Picard masks a deeper unease.

Troi jolts awake from unconsciousness, her body still reacting to the electromagnetic discharge with disorienting tingles and a sense of panic. She bolts upright, knocking aside medical equipment, her eyes …

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S5E15 · Power Play
Troi Overpowers Picard in Turbolift Escape

Desperate and aggressive, with a sense of urgency to escape the moon prison and retrieve the remains from the Essex crash site.

The Ux-Mal entities, possessing Troi, Data, and O’Brien, drive the violent takeover of the Enterprise. Their actions reveal their ruthlessness, desperation, and internal divisions. The entities’ goal is to escape …

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S5E15 · Power Play
Possessed crew ambushes Ten Forward

Terrified but focused—her fear is a white-hot drive to shield Molly, but there's no panic, only maternal determination.

Keiko O'Brien clutches her crying infant daughter, Molly, as the phaser battle erupts around them. She follows O'Brien's orders to lie on the floor, her body shielding Molly from stray …

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S5E15 · Power Play
Possessed crew locks down Ten Forward

Determined and hopeful. Dr. Crusher is acutely aware of the stakes, but her scientific training allows her to channel her urgency into precise, methodical analysis. There's a quiet intensity in her movements, a sense that she is the bridge crew's best chance at finding a weakness in the Ux-Mal entities' control over the possessed crew.

Dr. Beverly Crusher enters the bridge from the turbolift, her expression focused and determined. She moves quickly to the aft science station, her fingers flying over the console as she …

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S5E15 · Power Play
Picard Initiates Hostage Negotiation

Frustrated and helpless—he is acutely aware of the transporter array's critical role in the crew's ability to respond to the crisis, and its sudden disablement leaves him feeling exposed and ineffective. There's a sense of urgency in his voice, reflecting his understanding of the stakes and his desire to contribute to a solution.

The Transporter Officer works frantically at the transporter console, attempting to lock onto the signal but failing as the possessed crew disables the array. His frustration is palpable as he …

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S5E15 · Power Play
Troi rejects Picard’s diplomacy

A passive, almost mechanical compliance, with no visible resistance or emotional conflict.

O'Brien, under the Ux-Mal entity's control, engages in dialogue with Troi about Picard's negotiation attempts but remains relatively subdued compared to Data's aggression. He acts as a compliant host, his …

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S5E15 · Power Play
Data provokes Worf’s alien rage

Fearful and tense, with a sense of helplessness as the aliens’ demands escalate and the crew’s options narrow.

The hostages in Ten Forward, including Worf, are held at phaser-point by the possessed crew. Their fear and tension escalate as Data taunts Worf and Picard’s negotiations fail to secure …

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S5E15 · Power Play
Picard surrenders to Troi’s alien demands

Hostile, dominant, and single-minded. The Ux-Mal entities operate with a chilling efficiency, their actions driven by a desperate need to escape their confinement. There is no room for empathy or hesitation in their approach—they view the Enterprise crew as tools to be used and discarded, and their threats are designed to break the crew’s resistance and ensure their compliance.

The Ux-Mal entities, though not physically present on the bridge, are the driving force behind this event. Their influence is felt through Troi’s possession and the threats they issue over …

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S5E15 · Power Play
Data confirms the course change

Coldly triumphant, the Ux-Mal entities operate with a single-minded focus on their escape. Their emotional state is one of calculated confidence, driven by the knowledge that their plan is advancing and that the crew's resistance is crumbling.

The Ux-Mal entities, operating through Data and Troi, use this moment to assert their dominance over the Enterprise. Their possession of the crew members allows them to manipulate the ship's …

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S5E15 · Power Play
Pain as a weapon against possession

Not directly observable (off-screen), but inferred as 'desperate'—driven by their need to escape and survive, willing to use any means necessary to achieve their goals.

The Ux-Mal entities are the unseen antagonists of this event, possessing Troi, Data, and O'Brien and driving the crew's urgent response. Their presence is inferred through the crew's discussions about …

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S5E15 · Power Play
Crew devises dual-pronged counterattack plan

Not directly observable, but inferred as 'calculating and impatient'—their possession of the crew suggests a desperation to escape, and their tactics reflect a willingness to exploit any advantage.

The Ux-Mal entities are the unseen antagonists of this event, their presence felt through the possessed crew members—Troi, Data, and O’Brien. Their possession is the catalyst for the crew’s urgent …

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S5E15 · Power Play
O'Brien’s possession fractures under Molly’s cry

Desperately cunning, with underlying panic as their grip on the hosts weakens and their plan unravels.

The Ux-Mal entities, now possessing Troi, Data, and O’Brien, orchestrate the standoff in Ten Forward with a mix of deception, intimidation, and emotional manipulation. Their collective desperation is evident as …

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S5E15 · Power Play
Troi rejects Picard’s trust, demands ship access

Cold curiosity with undercurrents of unease—O’Brien’s possession is marked by a detached fascination with Molly, as if the Ux-Mal is grappling with a concept it cannot fully comprehend. His compliance with Troi’s orders masks a simmering instability, hinting at the entities’ internal fractures.

O’Brien, possessed by the Ux-Mal, exhibits erratic behavior, initially recognizing Keiko and Molly with a hint of fascination. He touches Molly, which only makes her cry louder, revealing the entities’ …

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S5E15 · Power Play
Possessed crew weaponize intimacy and escalate threats

Terrified and desperate, her sense of safety and intimacy shattered. The violation of her memories leaves her emotionally raw, and the separation from Molly amplifies her helplessness.

Keiko cradles Molly, her body trembling as O’Brien recites their intimate memories. She pleads with him to stop, covering her ears in a futile attempt to block out the violation. …

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S5E15 · Power Play
Riker confirms sensor and transporter failures

Cold, calculated dominance—they are in complete control and relish the crew's vulnerability.

The Ux-Mal entities, speaking through Troi, Data, and O'Brien, project an aura of effortless control. Their dialogue is precise, their actions synchronized, and their indifference to the Enterprise's limitations is …

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S5E15 · Power Play
Troi reveals the Ux-Mal escape plan

Ruthless, triumphant, and desperate, masking their vulnerability with aggressive confidence

The Ux-Mal entities manifest as a swirling energy cloud of hundreds of diving rings, accompanied by a hive-like hum. They possess Troi and Data, using their voices and bodies to …

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S5E15 · Power Play
Picard outmaneuvers the Ux-Mal entities

Hostile and aggressive while possessed, then utterly vulnerable as the Ux-Mal depart—his emotional state is a mirror of his physical collapse.

O’Brien, under Ux-Mal control, looms menacingly beside Troi and Data, his Irish brogue sharpened into a snarl as he enforces the entities’ demands. He collapses unconscious as the Ux-Mal retreat, …

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S5E15 · Power Play
Troi reveals the entity’s predatory intelligence

Not applicable (non-corporeal, referenced indirectly). Their 'presence' is one of lingering threat and unspoken danger, a specter that haunts the crew’s attempts to move forward.

The Ux-Mal Entities are not physically present but loom large in the scene through Troi’s testimony and O’Brien’s reflections. Their influence is felt in the tension that lingers in the …

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S5E15 · Power Play
Data Apologizes to Worf

Not applicable (as an organization/force, not a physical agent in this event). Their ‘presence’ is felt through the crew’s reactions—fear, anger, and a desire for closure.

The Ux-Mal entities are not physically present in this event, but their lingering influence is palpable. Their possession of Data, Troi, and O’Brien has left emotional and psychological scars, shaping …

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S5E15 · Power Play
O'Brien's Emotional Reclamation and Family Reconciliation

Relieved but still processing her own fear of loss, her love for O'Brien tempered by the knowledge of how close she came to losing him. Her surface calm is a deliberate choice to match his need for stability, but her grip on Molly betrays her underlying tension.

Keiko O'Brien stands beside the biobed, holding Molly as O'Brien recovers. Her initial silence and the way she clutches Molly tightly suggest her own lingering fear, but her response to …

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S5E15 · Power Play
Picard exploits Ux-Mal distrust with transporter trap

Focused and determined, with a underlying tension as she ensures the safety of the crew.

Beverly Crusher works alongside Geordi in the transporter room, her medical expertise critical to ensuring the plasma shock will not harm the possessed crew. She monitors the energy readings on …

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S5E15 · Power Play
Restoring the Rings and Reuniting Families

Defeated and resigned, with a sense of internal fragmentation among the entities.

The Ux-Mal entities, now cornered and vulnerable, surrender to Picard's demands as the containment field traps them in Cargo Bay 4. Their defeat is marked by a sense of resignation, …

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Affiliation

Ux-Mal Entities
Non-Corporeal Alien Prisoners and Possession-Based Ship Hijackers