Because you like Integra Hellsing in Hellsing
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.
Remy could be a five star Michelin chef, the only problem is that he is quite literally a rat. See them in Ratatouille.
Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.
His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.
Shaggy might be a bit of a slacker, but his heart and his stomach are usually in the right place. See them in Scooby-Doo.
Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.
If you hang out with Bender in cool dive bars in 31st century New York, make sure you're on his "Do Not Kill" list. See them in Futurama.
Shaun is used to being lazy. And now, you're asking him to fight for his life? See them in Shaun of the Dead.
You won't like him when Bruce Banner is angry. See them in Marvel Cinematic Universe.
With an undeniable sense of adventure, Huck Finn is an expert at getting into and, more importantly, out of sticky situations. See them in The Adventures of Huckleberry Finn.