Doppelgänger

A doppelgänger is a tangible double of a living person in fiction, folklore, and popular culture that typically represents evil. In the vernacular, the word doppelgänger has come to refer to any double or look-alike of a person. The word also is used to describe the sensation of having glimpsed oneself in peripheral vision, in a position where there is no chance that it could have been a reflection. Doppelgängers often are perceived as a sinister form of bilocation and generally regarded as harbingers of bad luck.

These new puritans – Doppelganger