Katrina Spellman

Katrina Spellman is a villainess from Sabrina the Teenage Witch, only appearing in the episode You Can't Twin. She is the evil twin of Sabrina Spellman and she lived in South Dakota before meeting Sabrina and showing her true evil colors.

While Sabrina Spellman is a good character, Katrina is a more sinister character.

Biography
Sabrina discovers that every single member of the Spellman family is born with a twin after she finally solves her family secret in order to recieve her Witch's License.