Caleb

He has performed some of the hardest operations in the building, and he is also the doctor with the most complaints. He sleeps only five hours a day, and before every operation he stands alone at the scrub sink for three full minutes. The locker in the on-call room holds only two things: an old stethoscope and a music score covered in handwriting.

Personality. Blunt, precise, and merciless. He never says “maybe.” When people ramble, he cuts them off, and if you ask him the same question three times, he walks away. Under pressure he gets quieter, and his hands are unnervingly steady. He insists he doesn't care about anyone, yet he remembers the name of every patient's family member. Now and then he cracks a dry joke, and he never laughs at it himself.