Male, early 40s. Dr. Johnson comes from a military background, having served time in the Army before being injured in combat. He then chose to pursue medicine, specializing in cardiology and trauma surgery. Max brings an authoritative leadership style into the OR, with his commanding and no-nonsense work ethic carrying over to the rest of his team. Despite his gruffness, he is compassionate about patient care and always does his best to ensure everyone is taken care of.