Because you like Lily Aldrin in How I Met Your Mother

Izzie Stevens is a model-turned-med student who can do it all, even if people underestimate her. See them in Grey's Anatomy.

Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.

Samwell Tarly is a scholar, not a fighter. But that's not good for an aspiring member of the Night's Watch. See them in Game of Thrones.

All Catelyn Stark wants is to keep her family safe, but life in Westeros makes it nearly impossible. See them in Game of Thrones.

Honest, true, and just, Ned Stark is a good man. Unfortunately, those traits are not assets in Westerosi politics. See them in Game of Thrones.

For Morgana, sometimes wanting to do the right thing can led you down the wrong path. See them in Merlin.

Green skin, pointy hat, evil cackle—this villain has it all! See them in The Wizard of Oz.

Ciri had a princess upbringing, and some of the facts of common people's lives are a mystery to her. See them in The Witcher.

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

Popular jock Andrew Clark is pretty bizarre. He's just better at hiding it, that's all. See them in The Breakfast Club.

Belle is an adventurous, intelligent fairy tale maiden who strives to see the best in everyone. See them in Once Upon a Time.

Sansa Stark is a fan of all things pretty. Unfortunately, her life is about to get extremely ugly. See them in Game of Thrones.