Because you like Christopher John Francis Boone in The Curious Incident of the Dog in the Night-Time

Christine Daae has been secretely taking lessons from a phantom musician. It sounded less creepy in her head. See them in The Phantom of the Opera.

A suave proprietor of an upscale nightclub and gambling den, Rick Blaine is dealing with World War II and a broken heart. See them in Casablanca.

Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.

Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.

Mystique is a shape-shifting mutant who, after too many disappointments, does not want to co-exist with humans. See them in X-Men Series.

Christopher Turk is bringing his A-game to his next big challenge: becoming a surgeon. See them in Scrubs.

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.

Spyro the Dragon loves getting into trouble around the Dragon Realms. See them in Spyro the Dragon.

This is not a democracy. According to Torrance Shipman, it's a "cheerocracy." See them in Bring It On.

Whether it's punching a meteor or saving a teen from jumping, Superman tries to be in as many places as Kryptonianly possible. See them in DC Extended Universe.

As the White House Press Secretary, C. J. Cregg is a master of verbal karate and the best damn basketball player in Ohio Valley history. See them in The West Wing.

Maurice Moss is a dedicated IT guy who even talks like a computer. See them in The IT Crowd.