• character in a play; human being; personality
• your persona is the aspect of your character or nature that you present to other people, perhaps in contrast to your real character or nature; a formal word.
persona non grata
• unpopular person, person who is not accepted
• if you declare someone persona non grata, they become unwelcome or unacceptable because they have done something which you disapprove of.
error in persona
• mistaken identity