In V for Vendetta, an activist going by the name V starts a violent campaign to bring down a totalitarian government and free the people to rule for themselves. The mask he wears of the real-life Guy Fawkes has been adopted, in turn, by the real-life Anonymous and the Occupy movements.
In The Matrix trilogy, Agent Smith (Hugo Weaving) is an artificial intelligence program tasked with keeping order within the matrix. As an agent, he possesses superhuman speed and strength. But he also has weaknesses, including a bad temper and the inability to dodge bullets shot from a certain distance.