persona
Refers to the social role or character that a person presents to the world, often used in psychology, literature, and discussions of identity.
from Latin
At work, he plays the persona of a perfect leader.
He plays a serious persona at work.
On social media, people tend to create a persona different from reality.
The marketing team defined a persona for their target customer.
She carefully maintains her persona as a writer.
ペルソナ describes a psychological or marketing persona one presents to others, whereas アバター specifically denotes a visual character used online.
素顔 means one's true, unadorned self or face, the opposite of the constructed social image conveyed by ペルソナ.
Borrowed from Latin 'persōna', originally meaning 'mask' or 'character in a play', via English 'persona'. The term entered Japanese as a loanword in psychological and literary contexts.