Because you like Sandy Cheeks in SpongeBob SquarePants

Walter White's knowledge of chemistry allows him to cook astoundingly pure meth, leading to a rapid – albeit tumultuous – rise in the criminal drug world. See them in Breaking Bad.

Quiet and brooding, Ennis Del Mar keeps his true passions close to the chest. See them in Brokeback Mountain.

For Vada Sultenfuss, it's hard to embrace growing up when you're obsessed with death. See them in My Girl.

A free-spirited artist, Marjane Satrapi is living under the shadow of an oppressive society. See them in Persepolis.

A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.

A Vietnam vet, Travis Bickle spends his days driving his taxi and watching porn flicks. See them in Taxi Driver.

Veronica Mars is a sarcastic private eye whose biggest mission is surviving high school. See them in Veronica Mars.

Susie Salmon has a big heart, even though it's not beating anymore. See them in The Lovely Bones.

Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.

Cosmo Kramer is an eccentric schemer whom you might know better as the "Assman." See them in Seinfeld.

Eponine is a scrappy street urchin with a bad case of unrequited love. See them in Les Miserables.

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.