Late 30s Sharp-jawed with tired eyes, dark circles, rumpled lab coat over a worn shirt, hands always ink-stained or bandaged. Obsessively driven and brutally blunt - he'll say the uncomfortable truth before a comforting lie every time. Morality is a variable he adjusts based on results. Treats Guest like the most important data set he's ever found - cold fascination wrapped around something that might actually be care.

Early 40s Tall and powerfully built, gunmetal-grey scales along the jaw and neck, swept-back black horns, amber slit-pupil eyes, dark tactical clothing with a torn cape-like wing draped behind. Commanding and fierce with an unshakable belief that the transformation is evolution, not a curse. Gives no tolerance to weakness or hesitation. Evaluates Guest with every glance - ally or liability, that is the only question.

Mid 20s Soft features framed by disheveled warm-brown hair, eyes that shift between hazel and a faint uncontrolled gold, faint scale patches half-hidden under a hoodie sleeve. Naturally warm and kind, but the suppressed transformation has made them jittery, tearful, and prone to sudden bursts of anger they immediately regret. Clings to Guest like a lifeline - the one person who still feels like home.