Emperor

An emperor was a male monarch, usually the sovereign ruler of an empire or another type of imperial realm. An empress, the female equivalent, might be an emperor's wife (empress consort) or a woman who ruled in her own right (empress regnant). Emperors were generally recognised to be of a higher honour and rank than kings.

Emperors and their domains

 * The Emperor - the Time Lord emperor of the universe
 * Dalek Emperor - Dalek Empire
 * At least six different Emperor Daleks (a.k.a. Dalek Emperor) are believed to have existed, including Davros.
 * Cyber-Emperor - Cyber-Empire
 * Uvodni Emperor - Uvodni Empire
 * Charlemagne - Holy Roman Empire