unemotional person vs doer

unemotional person and doer both are nouns.

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

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

Other hypernyms of unemotional person include actor, worker.

unemotional person (noun)	doer (noun)
someone who is seemingly indifferent to emotions	a person who acts and gets things done