Page "Evil twin" Paragraph 4

The biggest of these distinguishing traits is the goatee.

Famously used by the " Mirror Universe " version of Star Trek character Spock, in the episode " Mirror, Mirror ", it was an easy way for audiences to tell " good " Spock from " evil " Spock ( though in truth the character, while more ruthlessly logical than his counterpart, is far from evil ).

The presence of a goatee on a familiar character is now seen as an immediate clue that the character is an evil twin.

Even writers not discussing evil twins in their literary sense have occasionally made reference to the goatee through quick metaphor: