impostor

An impostor (also spelled imposter) is a person who pretends to be somebody else, often through means of disguise, deceiving others by knowingly falsifying one or more aspects of their identity. This is in contrast to someone that honestly believes their false identity due to psychosis (break from reality), mistake (e.g. mistakenly switched at birth, or memory problems), or having been lied to about their identity by another (e.g. by a parent, or kidnapper). They may lie about their name, rank or title, profession, education, identity of family members or friends, social class, notoriety or influence, life experiences, abilities or achievements, their health history or disability (or that of their family members), citizenship or club membership, racial or ethnic background, religious or po...