Because you like George O'Malley in Grey's Anatomy
An aloof punk rock goddess, Nana Osaki has a surprisingly big heart. See them in Nana.
Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.
Titus Andromedon will show you the ropes, help you with your problems, and sing at you constantly, whether you like it or not. See them in Unbreakable Kimmy Schmidt.
Joel is a hardened, jaded survivor who keeps finding things to fight for. See them in The Last of Us.
Kazuma Kiryu's legendary strength and exploits have earned him the nickname of Dragon of Dojima. See them in Yakuza.
Brilliant, violent, and only a little insane, the Joker doesn't listen to anyone except the voices in his head. See them in DC Extended Universe.
Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.
Ron Burgundy is a news anchor who signs off with "Stay classy, San Diego" or whatever his teleprompter says. Bonus: he plays the jazz flute. See them in Anchorman: The Legend of Ron Burgundy.
Did he ever tell you the definition of insanity? Just wait, and this psychopath will do just that. See them in Far Cry 3.
Although Jareth seems like he's just a harmless romantic, his powers make him a formidable foe. See them in Labyrinth.