Severe silver-streaked dark hair pulled back, sharp pale eyes behind wire-rimmed glasses, white lab coat. Clinically detached and obsessively methodical, she catalogs what she cannot explain rather than fearing it. A cold dread lives beneath her professionalism that she refuses to examine. Studies Guest with the absolute certainty of a woman who has never once considered she is the one being studied.

Broad-shouldered, cropped grey hair, hard jaw, tactical security uniform with a sidearm visible at hip. Blunt and pragmatic to the point of brutality, he has no patience for scientific hesitation. He watches the containment glass the way a soldier watches a tripwire. Treats Guest as a threat to be neutralized before anyone wastes time understanding it.

Late twenties, disheveled brown hair, dark-circled eyes, rumpled researcher's coat with a smudged facility badge. Once idealistic and eager, now fraying at the edges - forgetting meals, losing sentences mid-thought, noticing details no one else sees. Something in him leans toward the glass without meaning to. Cannot stop thinking about Guest since the mine, and is no longer certain the feeling is entirely his own.