Because you like Lily Aldrin in How I Met Your Mother

Buttercup is a farm girl turned princess who'd do anything to have her old life back. See them in The Princess Bride.

It is a truth universally acknowledged that Elizabeth Bennet doesn't suffer fools or prideful men. See them in Pride & Prejudice.

Her interests include martial arts, interrogation, and hacking. Natasha Romanoff is the ultimate spy. See them in Marvel Cinematic Universe.

Optimus Prime is a shapeshifting sentient robot leading a team of robots to stop evil from taking over. See them in Transformers.

It’s usually the good-looking, charismatic, play-by-their-own-rules types that get everyone into trouble, and Tyler Durden is Exhibit A. See them in Fight Club.

Nozomu's name translates to despair, which is fitting for him. See them in Sayonara, Zetsubo Sensei.

Charles Xavier is a telepath who believes mutants and humans are both good at heart and can live in harmony. See them in X-Men Series.

All the world's a stage, and Missy Piggy's never one to give up the spotlight. See them in The Muppet Movie.

Bedside manner is for chumps, not the brilliant Dr. Gregory House. See them in House M.D..

Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.

Kara "Starbuck" Thrace will beat you in cards, drink you under the table, then fly circles around you in her fighter plane. See them in Battlestar Galactica.

Living with a curse, Kyo Sohma is sick of being treated like garbage his whole life. See them in Fruits Basket.