movie actor vs histrion

movie actor and histrion both are nouns.

Word	Noun	Adjective	Verb	Adverb
movie actor	Yes	No	No	No
histrion	Yes	No	No	No

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

Other hypernyms of movie actor include actor, player, role player, thespian.

movie actor (noun)	histrion (noun)
an actor who plays a role in a film	a theatrical performer