John Dorian, often referred to as J.D., is a fictional character from the television series Scrubs. He is portrayed as a medical intern navigating the challenges of working in a hospital while dealing with personal and professional relationships. Throughout the series, J.D. often shares his thoughts and experiences through imaginative daydreams and voiceovers. His character is known for his humor, vulnerability, and growth as he learns to balance his career and friendships, particularly with his mentor, Dr. Cox, and his best friend, Turk.