unwelcome person vs doer

unwelcome person and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
unwelcome person	Yes	No	No	No
doer	Yes	No	No	No

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

Other hypernyms of unwelcome person include actor, worker.

unwelcome person (noun)	doer (noun)
a person who for some reason is not wanted or welcome	a person who acts and gets things done