Because you like Alex Mercer in Prototype Series

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.

Don't worry about this forensic scientist offing you unless you're a serial killer yourself. (You're not, right? Just checking.) See them in Dexter.

Spike Spiegel is a bounty-hunter with a laidback style and lightning-quick moves. See them in Cowboy Bebop.

A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.

Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.

Though seemingly caring and calm, this motel owner has a mysterious streak of intensity. See them in Psycho.

Poison Ivy is a seductive, venomous botanist laments the fact that there are so many people to kill, yet so little time. See them in DC Extended Universe.

When their organization was infiltrated by evil HYDRA, who was the one guy Captain America trusted? A former soldier with kickass wings named Sam Wilson. See them in Marvel Cinematic Universe.

Tail's smarts and helpful nature come in handy in a pinch. See them in Sonic the Hedgehog.

N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.

Blunt, petty, neurotic, Larry David can never live and let live. See them in Curb Your Enthusiasm.

Courteous, dangerous, and powerful, Kaname Kuran controls an entire court of vampires. Very, very pretty vampires. See them in Vampire Knight.