Because you like Alex Blake in Criminal Minds

It's hard enough for Marta Cabrera to be part of a murder investigation, but when you can't lie? See them in Knives Out.

Blaine Anderson is a put-together prep school boy with the voice of an angel. See them in Glee.

Sookie St. James is a klutzy and perfectionist chef who's always there for her friends. See them in Gilmore Girls.

C is for cookie, and that's more than good enough for him. See them in Sesame Street.

Burton Guster is a level-headed investigator with a "Super Sniffer" nose. See them in Psych.

Scooby-Doo always keeps his priorities in order: eat snacks first, solve mysteries later. See them in Scooby-Doo.

Suzy Bishop is only 12, but her withering stare and withdrawn personality are enough to make anyone wilt. See them in Moonrise Kingdom.

In charge of stocking the office's supply of cigarettes and liquor, Joan Holloway could run the whole company if they would let her. See them in Mad Men.

Trevor Phillips is an unpredictable maniac who tortures people for no reason. See them in Grand Theft Series.

After years of being a nerdy loner, Seth Cohen can't wait to shower charm on his newfound friends. See them in The O.C..

Amy March blends her naturally artistic spirit with a sense of practicality. See them in Little Women.

Sylar's victims are found all over the country, many with their brains removed. See them in Heroes.