theatrical role vs persona

theatrical role and persona both are nouns.

Word	Noun	Adjective	Verb	Adverb
theatrical role	Yes	No	No	No
persona	Yes	No	No	No

As nouns, theatrical role and persona are synonyms defined as:

Other synonyms of theatrical role include character, part, role.

theatrical role (noun)	persona (noun)
an actor's portrayal of someone in a play	(Jungian psychology) a personal facade that one presents to the world
	an actor's portrayal of someone in a play