Because you like Lilo in Lilo & Stich

Pro: Johan Liebert is handsome and charming. Con: he's also a sociopathic killer. See them in Monster (TV Show).

Roger Kint is a nervous, weak, ham-handed criminal. We think. See them in The Usual Suspects.

Norma Bates may look like a harmless housewife, but don't let that fool you. See them in Bates Motel.

A natural leader, Clarke Griffin dispenses both justice and mercy, and she does it all while being selflessly humble. See them in The 100.

Steve Stifler is more than just a dude with a hot mom. He's also rude, profane, and obnoxious. See them in American Pie.

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.

Cutting ties with her con-artist friends, Sarah Manning is creating a better life for her daughter by taking on the identity of the deceased Beth. See them in Orphan Black.

Bad-ass Rayne has sworn her life to finding and destroying her vampire dad, Kagan, and killing as many other vampires as she can in the bargain. See them in BloodRayne .

Once a loving family man, James Heller is now dark, damaged, and hell-bent on getting revenge. See them in Prototype Series.

Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.

The quiet, intense Daryl Dixon lets his crossbow do the talking. See them in The Walking Dead.

A laid-back stoner, Ben Stone wasn't planning on life's ultimate responsibility. See them in Knocked Up.