tyrant vs actor

tyrant and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
tyrant	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of tyrant; that is, actor is a word with a broader meaning than tyrant:

Other hypernyms of tyrant include doer, worker.

tyrant (noun)	actor (noun)
a cruel and oppressive dictator	a theatrical performer
any person who exercises power in a cruel way	a person who acts and gets things done
in ancient Greece, a ruler who had seized power without legal right to it