Because you like Ragnar Lothbrok in Vikings

A kind, sensitive medical intern doing the best he can, George O'Malley sometimes struggles to keep up. See them in Grey's Anatomy.

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

Foggy Nelson is a principled small-time lawyer fighting for fellow little guys. See them in Marvel Cinematic Universe.

Hank McCoy is a quintessential nerdy scientist but with a few rather unconventional physical attributes. See them in X-Men Series.

A jealous woman is dangerous. A jealous assassin woman like Elle Driver is even more so. See them in Kill Bill vol. 1.

Topanga Lawrence has been a put-together intellectual since basically the moment she could talk. See them in Boy Meets World.

Vincent Vega likes a good steak, a cheap milkshake, and killing a target without anything going wrong. See them in Pulp Fiction.

Anger is a cantankerous hothead whose job is to get others riled up. See them in Inside Out.

A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.

Wanderer is a Soul, a parasite sent into a host to take over their body, extracting information from them and colonizing their species. See them in The Host.

CIA operative Carrie Mathison is on a self-assigned mission to follow a lead, whether it be the truth or just her delusions playing tricks. See them in Homeland.

Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.