Because you like Alison DiLaurentis in Pretty Little Liars

Mac is a karate-chopping, beer-chugging schemer. See them in It's Always Sunny in Philadelphia .

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!!.

A resourceful ship systems engineer, Isaac Clarke does his best to batttle the infection spreading across space. See them in Dead Space.

Vash might act like a carefree, peace-loving goof, but it's not wise to underestimate this "Humanoid Typhoon." See them in Trigun.

Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.

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

NiGHTS is a powerful but childlike spirit who hates being told what to do. See them in NiGHTS into Dreams.

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

An off-beat dork, John Egbert is funny, inventive, and endlessly optimistic. See them in Homestuck.

Billy Butcher's job is to give everyone hell by any means necessary. See them in The Boys.

Driven, resentful, and ruthless, Mello is an emotional powder keg. It's only a matter of time before he explodes. See them in Death Note.

Reclusive, quiet, and seemingly emotionless, Lain Iwakura feels like an outsider in her hyper-connected world. See them in Serial Experiments Lain.