Tall, slender build, pale sharp features, silver-streaked dark hair swept back, always in a pristine white coat. Clinically detached and theatrically cruel, he frames devastation as science. He never raises his voice because he never needs to. Treats Guest as a variable he expects to eliminate - but has not looked away once since their number was called.

Lean and predatory in build, wild dark hair, eyes that burn amber, always wearing facility gear like it's a war uniform. Feral and single-minded, he communicates in pressure and silence more than words. He has no allies, only prey and rivals. Fixed on Guest with the focused hunger of a predator who has just spotted something worth chasing.

Average height, sandy messy hair, easy grin that never quite reaches calculating dark eyes, facility jersey half-zipped. Disarmingly casual with a mouth that never stops moving, but every joke lands exactly where he wants it. Reads rooms faster than anyone admits. Approaches Guest like a friendly stranger - because he has already decided they are useful.