Because you like Princess Peach in Super Mario Bros.

Loyal to his family and associates and distrustful of anyone else, Tony Soprano is a good guy to have on your side. See them in The Sopranos.

Though Ray Holt is a man of few words and even fewer smiles, he cares deeply about his precinct and detectives. See them in Brooklyn Nine-Nine.

This android may not have emotions, but Lt. Commander Data's curiosity about humanity is endless. See them in Star Trek: The Next Generation.

Breaking bones and hearts, Callie Torres has figured out how to put the bones back together. But the hearts? Not so much. See them in Grey's Anatomy.

Beneath Arthur's brash demeanor lurks the heart of a compassionate future king destined to unite the five kingdoms. See them in Merlin.

Klaus Baudelaire's photographic memory saves the lives of his siblings many times over. See them in Lemony Snicket's A Series of Unfortunate Events.

Thankfully, Jenna Hamilton has her sense of humor and friends to get her through the endless torture that is high school. See them in Awkward..

Eric Forman's interests include smoking weed, collecting Luke Skywalker memorabilia, eating Fatso burgers, and making his dad mad. See them in That '70s Show.

Prim and proper Allie Hamilton was raised to follow the rules. But she's got a fiery rebellious side too. See them in The Notebook.

Alex Russo desperately wants to keep her magic – after all, things are so much easier when you can just wave a wand. See them in Wizards of Waverly Place.

Park feels like an outsider everywhere he goes, but he doesn't know if he wants to try fitting in anymore. See them in Eleanor and Park .

Kathryn Merteuil may be a vain sociopath, but you won't be able to look away. See them in Cruel Intentions.