adversary vs actor

adversary and actor both are nouns.

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

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

Other hypernyms of adversary include doer, worker.

adversary (noun)	actor (noun)
someone who offers opposition	a theatrical performer
	a person who acts and gets things done