Because you like Rincewind in Discworld

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.

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.

Teddy Sanders loves his frat brothers so much he might never leave school. See them in Neighbors.

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

Ezio Auditore Da Firenze is a little short-tempered, a lot fun-loving. See them in Assassin's Creed Series.

A speed-loving daredevil who lives on the edge, Sonic is as brave as he is cocky. See them in Sonic the Hedgehog.

Mario is a plumber who wears a ridiculous outfit, eats weird looking mushrooms, and fits himself inside your pipes so he can save a princess. See them in Super Mario Bros..

An ambitious man of science, Norman Osborn has become green with envy over Spider-Man's powers. See them in Marvel Cinematic Universe.