interpreter vs doer

interpreter and doer both are nouns.

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

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

Other hypernyms of interpreter include actor, worker.

interpreter (noun)	doer (noun)
(computer science) a program that translates and executes source language statements one line at a time	a person who acts and gets things done
an advocate who represents someone else's policy or purpose
someone who mediates between speakers of different languages
someone who uses art to represent something