thespian vs actor

thespian and actor both are nouns.

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

As nouns, thespian and actor are synonyms defined as:

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

thespian (noun)	actor (noun)
a theatrical performer	a theatrical performer
	a person who acts and gets things done

thespian (adjective)	actor (adjective)
of or relating to drama