A persona (plural personae or personas) is a strategic mask of identity in public, the public image of one's personality, the social role that one adopts, or simply a fictional character. It is also considered "an intermediary between the individual and the institution." Persona studies is an academic field developed by communication and media scholars. The related notions of "impression management" and "presentation of self" have been discussed by Erving Goffman in the 1950s. . The word persona derives from Latin, where it originally referred to a theatrical mask.
https://en.wikipedia.org/wiki/Persona