Because you like Rincewind in Discworld

Foul mouthed and disturbingly comfortable with violence, Hit-Girl is a precocious assassin who doesn't need anyone's protection. See them in Kick-Ass.

Rhodes has to trust his conscience to guide him through a political struggle that could change the very shape of modern warfare. See them in Marvel Cinematic Universe.

Marty McFly is a skateboarder, aspiring rock star, and reluctant time-traveler. See them in Back to the Future.

Winry Rockbell is an energetic tomboy mechanic with an empathetic streak. See them in Fullmetal Alchemist.

Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.

This wizard is never late, nor is he early. Gandalf arrives precisely when he means to. See them in The Lord of the Rings.

Klaus Hargreeves is funny, flirty, and high at any given moment, but he's also the most emotionally literate of his super-powered siblings. See them in The Umbrella Academy.

Number Five is a 58-year-old man trapped in his 13-year-old body. See them in The Umbrella Academy.

James T. Kirk is more than ready to face the final frontier. See them in Star Trek.

Fox Mulder is a devoted believer in aliens, monsters, and that the truth is out there. See them in The X-Files.

If there's any hope of resolving things peacefully, this proud ape leader will have to trust the humans. See them in Dawn of the Planet of the Apes.

Shaun is used to being lazy. And now, you're asking him to fight for his life? See them in Shaun of the Dead.