Doctor


 * You may be looking for The Doctor, the EMH of the USS Voyager.

A doctor was one of the highest degrees that could be awarded by a university to a person in their discipline. This title may refer to an Doctor of Medicine (MD) or a Doctor of Philosophy (PhD) for scientific pursuits. 

Types of doctors

 * Astrophysicist
 * Dentist
 * Engineer
 * Physician
 * Scientist
 * Surgeon
 * Veterinarian