Because you like Tuvok in Star Trek: Voyager
Jesse Tuck dreams of finding someone to join his unusual family. See them in Tuck Everlasting.
Luke Skywalker always wanted to leave home, but he didn't expect that it would be as part of a quest to rescue a princess and save the galaxy. See them in Star Wars Series.
Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.
Donna is boisterous and spunky traveller of the TARDIS, exploring worlds beyond the simple mundane enterprises of Earth. See them in Doctor Who.
James T. Kirk is more than ready to face the final frontier. See them in Star Trek.
Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.
Margaery Tyrell is one of the most adept and charming liars there is. See them in Game of Thrones.
Bo Dennis once dreamed of being prom queen, but then she found out that she's part of some ageless secret race that feeds on humans. See them in Lost Girl.
Sookie Stackhouse is a waitress who can read minds and break hearts. See them in True Blood.
Though seemingly caring and calm, this motel owner has a mysterious streak of intensity. See them in Psycho.
Beware! Anton Chigurh carries a coin with him, which he forces his victims to flip to decide whether they will live or die. See them in No Country for Old Men.