discriminator vs actor

discriminator and actor both are nouns.

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

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

Other hypernyms of discriminator include doer, worker.

discriminator (noun)	actor (noun)
a person who (or that which) differentiates	a theatrical performer
	a person who acts and gets things done