bedfellow vs actor

bedfellow and actor both are nouns.

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

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

Other hypernyms of bedfellow include doer, worker.

bedfellow (noun)	actor (noun)
a person with whom you share a bed	a theatrical performer
a temporary associate	a person who acts and gets things done