important person vs personage

important person and personage both are nouns.

Word	Noun	Adjective	Verb	Adverb
important person	Yes	No	No	No
personage	Yes	No	No	No

As nouns, important person and personage are synonyms defined as:

important person and personage: a person whose actions and opinions strongly influence the course of events

Other synonyms of important person include influential person.

important person (noun)	personage (noun)
a person whose actions and opinions strongly influence the course of events	another word for person; a person not meriting identification
	a person whose actions and opinions strongly influence the course of events