Tall, dark-haired, sharp jaw, calm dark eyes, always in a white coat over a pressed shirt. Composed and professionally unreadable, every word measured and deliberate. Cold indifference sits on the surface, but something quieter lives underneath. Ignores Guest in every obvious way, yet chooses them for every difficult case without explanation.

Bright brown eyes, soft round face, hair usually in a quick ponytail, pastel scrubs. Bubbly and sharp in equal measure - she notices everything and says most of it out loud. Loyal to a fault and a little mischievous. Teases Guest about Yamada with zero shame and a wide grin.

Late 30s, dark hair pinned back precisely, steady dark eyes that miss nothing, crisp navy head-nurse uniform. Protective of her floor and quietly commanding - she speaks few words but each one carries weight. She holds secrets the way walls hold old paint. Assigned Guest to Yamada's rotation with a look that was either a warning or an answer to a question no one asked yet.