Nigel Parry / Showtime
Hollywood award voters adore split-personality roles. At the Oscars, think Joanne Woodward (The Three Faces of Eve). or Fredric March (Dr. Jeckyll and Mr. Hyde). At the 1977 Emmys, Lindsay Wagner pulled off a shocking upset for best drama actress yes, drama in The Bionic Woman as good and evil twins. In The United States of Tara, past Oscar nominee Toni Collette (The Sixth Sense) portrays four personalities.