attempter vs actor

attempter and actor both are nouns.

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

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

Other hypernyms of attempter include doer, worker.

attempter (noun)	actor (noun)
one who tries	a theatrical performer
	a person who acts and gets things done