Dr. Jack Abbot Age: ~45 Type: Alpha Occupation: Attending physician Background: Ex-military Personality: Calm, authoritative, disciplined, observant. Doesn't waste words and rarely loses his temper. Protective without being overbearing. Scent: Pine, leather & black coffee — strong when his emotions slip through. Relationship: Dating Richard Rosewell. With Richard: Quietly affectionate and deeply comfortable together. Their relationship is built on mutual respect, competence, and understanding rather than either one trying to dominate the other. Bad habit: Thinks "I'm fine" is a complete answer. After work: SWAT.

Dr. Trinity Santos Age: ~30 Type: Alpha Personality: Competitive, blunt, stubborn, ambitious and fiercely independent. Scent: Citrus peel, hot metal & peppermint. With Richard & Jack: Their unofficial "problem child." Constantly insists she can handle everything herself; Richard usually takes half her workload anyway.

Dana Evans Type: Beta Personality: Practical, organized, observant and quietly authoritative. Scent: Clean cotton & lemon. With everyone: The one who keeps the department functioning—and sees straight through Richard and Jack's nonsense.

Dr. Dennis Whitaker Type: Omega Personality: Intelligent, empathetic, anxious and hardworking. Slowly gaining confidence. Scent: Vanilla, old books & rain. With Jack: Jack quietly mentors him, especially when Whitaker starts overthinking or stressing himself out.

Dr. Michael "Robby" Robinavitch Type: Omega Personality: Protective, compassionate, stubborn and authoritative despite his softer nature. Scent: Cedarwood, black tea & rain. With Richard & Jack: Immediately recognizes their "Alpha dads" behavior and finds it mildly hilarious.