Because you like Sam Vimes in Discworld

Although Thomas Sharpe is an English baronet, he doesn't have a Shilling to his name. He's in America to sell his invention and marry rich. See them in Crimson Peak.

Kind and friendly, Rinoa Heartilly is nonetheless an effective freedom fighter. See them in Final Fantasy Series.

The destroyer, Drax lives for one thing and one thing only: revenge. See them in Marvel Cinematic Universe.

Lazy and cynical‚ Bernard Black is the ultimate curmudgeon. See them in Black Books.

Charles Boyle is the human equivalent of a puppy, only slightly less adorable. See them in Brooklyn Nine-Nine.

Riley Blue is trying to outrun her bad luck, but she might not be fast enough. See them in Sense8.

How is angel Aziraphale supposed to stop the apocalypse when Hell's forces misplaced the Antichrist somewhere? See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.

An adventurous dreamer, George Bailey always winds up putting other people's dreams first. See them in It's A Wonderful Life.

There's magic behind Tara Maclay's quiet façade. See them in Buffy the Vampire Slayer.

James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..

Caitlin Snow believes that burying herself in science is the best way to save the day or to mend a broken heart. See them in DC Extended Universe.

With an abundant supply of alcohol, nice restaurants, and free will, Crowley is a demon who is thoroughly enjoying his time on Earth. See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.