forerunner vs actor

forerunner and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
forerunner	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of forerunner; that is, actor is a word with a broader meaning than forerunner:

Other hypernyms of forerunner include doer, worker.

forerunner (noun)	actor (noun)
something that precedes and indicates the approach of something or someone	a theatrical performer
a person who goes before or announces the coming of another	a person who acts and gets things done
anything that precedes something similar in time