succeeder vs doer

succeeder and doer both are nouns.

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

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

Other hypernyms of succeeder include actor, worker.

succeeder (noun)	doer (noun)
a person with a record of successes	a person who acts and gets things done