player vs actor

player and actor both are nouns.

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

As nouns, player and actor are synonyms defined as:

Other synonyms of player include histrion, role player, thespian.

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

player: a person who pursues a number of different social and sexual partners simultaneously
actor: a person who acts and gets things done

Other hypernyms of player include doer, worker.

player (noun)	actor (noun)
a theatrical performer	a theatrical performer
a person who participates in or is skilled at some game	a person who acts and gets things done
someone who plays a music as a profession
a person who pursues a number of different social and sexual partners simultaneously
someone who takes part in an activity