noun a claimant to the throne or to the office of ruler (usually without just title).
noun a person who makes deceitful pretenses.
— synonyms: imposter, impostor, fake, faker, fraud, sham, shammer, pseudo
noun a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives.
— synonyms: hypocrite, dissembler, dissimulator, phony, phoney