laugher vs doer

laugher and doer both are nouns.

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

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

Other hypernyms of laugher include actor, worker.

laugher (noun)	doer (noun)
an easy victory	a person who acts and gets things done
a person who is laughing or who laughs easily