screen actor vs player

screen actor and player both are nouns.

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

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

Other hypernyms of screen actor include actor, histrion, role player, thespian.

screen actor (noun)	player (noun)
an actor who plays a role in a film	a theatrical performer
	a person who participates in or is skilled at some game
	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