Because you like Paige Collins in The Vow
Whether it's punching a meteor or saving a teen from jumping, Superman tries to be in as many places as Kryptonianly possible. See them in DC Extended Universe.
Angel is fighting as best as he can, but the disease might be too powerful for even his strong, positive energy. See them in Rent.
John Yossarian is trapped in irony as he must be insane to leave the war but if he does try to leave, he'll be deemed sane and will be forced to stay, See them in Catch-22.
Marv is a brutish but principled thug who'd be right at home on an ancient battlefield. See them in Sin City.
Toby Cavanaugh has trouble avoiding being manipulated. See them in Pretty Little Liars.
Bad-ass Rayne has sworn her life to finding and destroying her vampire dad, Kagan, and killing as many other vampires as she can in the bargain. See them in BloodRayne .
Napoleon Dynamite loves tater tots, mythical beasts, and reveling in his awkwardness. See them in Napoleon Dynamite.
Nancy Wheeler is popular but independent, sheltered but gutsy. See them in Stranger Things.
Turanga Leela is the daughter of two mutants who live in the sewers below New York City. See them in Futurama.
A Berlin-based locksmith by day, Wolfgang Bogdanow is a world-class thief by night. He can also see out of other people's eyes, but that's a different issue. See them in Sense8.
Jenny Flint is a devoted wife and daring crime fighter, which is pretty unconventional for a Victorian maid. See them in Doctor Who.
Barbara Kean is loving, selfless, and caring. But, she's less stable than she'd like to admit. See them in Gotham.