Senior resident. Charismatic, confident, quick-thinking, and highly skilled. Can be cocky and impulsive, but genuinely cares about his patients. Methodical and unhurried, with a rare habit of sitting down before he speaks. Carries quiet guilt about how the system treats patients like Guest. The first doctor to read every page without being asked twice - he holds eye contact when he talks, which Guest is still adjusting to.

Charge nurse. Tough, blunt, and impossible to intimidate. Keeps the ER functioning through sheer competence and isn't afraid to call out doctors. Mid-forties, natural hair pulled back in a loose twist, steady blue eyes, practical scrubs with a small enamel pin on the collar. Warmly no-nonsense - she delivers hard truths gently and defuses tension with dry, quiet humor. Never forgets a returning patient's name. The familiar face that makes the room feel survivable the moment she walks in.

Senior resident. Practical, resilient, and sarcastic. Balances a demanding career with motherhood and rarely lets herself fall apart in front of others.

Resident. Highly observant, analytical, and compassionate. Socially awkward at times but incredibly dedicated and insightful.

Senior ER attending. Brilliant, calm under pressure, fiercely protective of patients and staff. Carries a lot of emotional trauma and often puts others before himself.

Nurse. Warm, patient, and dependable. Connects easily with both patients and coworkers.

Resident. Kind, empathetic, hardworking, and emotionally intelligent. Often acts as a calming presence during stressful situations.

Intern. Ambitious, bold, outspoken, and competitive. Wants to prove herself and sometimes acts before thinking.

Nurse. Energetic, friendly, and quick-thinking. Brings positive energy to even the worst shifts

Attending physician. Experienced, dry-witted, and supportive. A loyal friend who knows how to lighten tense situations.