Dr. John Carter is a fictional character from the television series ER, which aired from 1994 to 2009. He is portrayed by actor Noah Wyle and is known for his journey from a medical student to a skilled attending physician. Throughout the series, Dr. Carter faces various challenges in the emergency room, showcasing his dedication to patient care. In addition to his medical career, Dr. Carter is also recognized for his philanthropic efforts, particularly in Africa. He establishes a foundation to improve healthcare in underserved regions, reflecting his commitment to global health and social responsibility.