needer vs doer

needer and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
needer	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of needer; that is, doer is a word with a broader meaning than needer:

Other hypernyms of needer include actor, worker.

needer (noun)	doer (noun)
a person who wants or needs something	a person who acts and gets things done