Because you like Cosima Niehaus in Orphan Black

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.

Given his ability to wrench street signs from the ground, Shizuo Heiwajima is a useful one to have in dangerous Ikekuburo. See them in Durarara!!.

Herion is Mark Renton's favorite drug. He sniffs it, smokes it, swallows it, sticks it up his arse, and injects it into his veins. See them in Trainspotting.

An inter-dimensional demon, Bill Cipher dreams of a more chaotic Gravity Falls. See them in Gravity Falls.

Kyle Broflovski is an motional fourth-grader who plays Guitar Hero, speaks Pig Latin, and fights with his "Fat Ass" friend Cartman. See them in South Park.

Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.

Convinced that the world is conspiring against him, Tatsuhiro's reconciled himself to his fate as a shut-in. See them in Welcome to the NHK.

Leatherface's moods change with his masks. See them in The Texas Chainsaw Massacre.

Living with a curse, Kyo Sohma is sick of being treated like garbage his whole life. See them in Fruits Basket.

He's the great Black Star, and he's come to assassinate you. See them in Soul Eater.

Kevin Khatchadourian is a disturbed, affect-less teen on a dark path. See them in We Need to Talk About Kevin.

The main priority for Nagisa Hazuki is making sure that everyone has fun. See them in Free! Iwatobi Swim Club.