Doctor

Doctor refers to any individual who has graduated from a college or university with a doctorate. In most instances, these individuals specialize in the medical field, but some literary scholars may also possess doctorates and hold the title of doctor. Many scientists, also refer to themselves as doctors, though in the case of certain "mad scientists", this is likely used as an honorific as many of these individuals have been stripped of their license to practice medicine.

In the 1984 film A Nightmare on Elm Street, teenager Nancy Thompson went to the Katja Institute where a dream specialist named Doctor Samuel King treated her for nightmares regarding a hideously burned murderer named Freddy Krueger.

One of the more obscure doctors of note is Doctor Edward Rendell, Jr., a psychotic murderer who earned himself the unflattering nickname "Doctor Giggles" due to his persistant habit of giggling. Played by actor Arnold Drake, he was the central antagonist of the 1992 film Dr. Giggles.

Despite his name, Doctor Satan from House of 1000 Corpses and The Haunted World of El Superbeasto is not a real doctor.