Because you like Philip J. Fry in Futurama

Caitlin Snow believes that burying herself in science is the best way to save the day or to mend a broken heart. See them in DC Extended Universe.

He's a troubled insomniac in search of a moment to rest and a meaning to his existence. See them in Fight Club.

Claudia may look young, but she is a wise and philosophical vampire, knowing of the world and the darker nature of man. See them in Interview with the Vampire: The Vampire Chronicles.

Though cynical about the world, Shuya Nanahara is caring and protective towards his friends. See them in Battle Royale.

Fiery and adventurous, Amy Pond is the sort of woman you'd want by your side on a journey through time and space. See them in Doctor Who.

Not only could Hellboy avenge your death, he'd also have a sense of humor about it and not let it ruin the rest of his night. See them in Hellboy.

Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.

Alex Dunphy's self-reliant intelligence comes with a healthy dash of sarcasm. See them in Modern Family.

Django was once a slave. Now that he has a taste of freedom, he understandably wants a full meal. See them in Django Unchained.

Kelly Kapoor's interests are office gossip, pink (the color), Pink (the singer), snow cones, the temp Ryan, and "basically, anything that is awesome." See them in The Office.

Dutiful, composed, and aloof, Sun Bak is the fighting force behind her team of eight "sensates" who are telepathically linked. See them in Sense8.

Dolores Umbridge keeps her villainy hidden (albeit poorly) behind a sheen of sugary pink politeness. See them in Harry Potter Series.