Topic summary
Imposter
Extracted from the Wikipedia article List of impostors.
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).