Who portrayed Bella Swan in the "Twilight" saga?

Kristen Stewart

Who was the original leading actor in the "Mission: Impossible" movie series? What is Luna Lovegood’s father’s name? Which winter sport involves sled-like vehicles called luges? Cuba celebrates Christmas after removing a decades-long ban in what year? Who is the villainous antagonist in the Sonic The Hedgehog series known for piloting mechanical vehicles?