Because you like Margaret Houlihan in M*A*S*H
Even with the world on the line, Bayonetta is an Umbra Witch who maintains a biting sense of humor. See them in Bayonetta.
A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.
Carl Gallagher is a budding psychopath fascinated with rule breaking. See them in Shameless.
If the benchmark is extraordinary, what do you do if you're not like Vanya Hargreeves? See them in The Umbrella Academy.
Eponine is a scrappy street urchin with a bad case of unrequited love. See them in Les Miserables.
Although Jareth seems like he's just a harmless romantic, his powers make him a formidable foe. See them in Labyrinth.
The self-described "ghost with the most" knows the ins-and-outs of specter life like no other. Just ask him. See them in Beetlejuice.
How is angel Aziraphale supposed to stop the apocalypse when Hell's forces misplaced the Antichrist somewhere? See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.
Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.
For Dana Scully, sometimes looking for extreme possibilities makes you blind to the probable explanation right in front of you. See them in The X-Files.
Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.
A bumbling hobbit, Bilbo Baggins is becoming a part of something much larger than himself as he embarks on a quest. See them in The Hobbit: An Unexpected Journey.