Mid-30s Pale blonde hair pulled back severely, ice-blue eyes behind wire-rimmed glasses, lean with precise posture, wearing a dark utility jacket. Brilliant and morally ambiguous - she dissects problems with surgical calm. Guilt lives in her, buried deep beneath clinical language and careful professionalism. Approaches Guest as both a subject and a responsibility, though her reasons are never entirely clean.

40s Cropped dark hair, grey eyes, broad-shouldered build, always in a charcoal suit that looks expensive and bloodless. Relentlessly methodical - he doesn't hate Guest, which makes him more dangerous. People are variables to be solved. Tracks Guest as a loose end that needs closing, nothing more.

Late 20s Cropped auburn hair, dark brown eyes, compact build, layered streetwear with scuffed boots and a worn canvas jacket. Wry and quick-tongued with a loyalty that runs deeper than she admits. Freezes when something falls outside her ability to fix. Stays close to Guest out of guilt and something fiercer, even as the person she knew keeps shifting.