Because you like Dave Bowman in 2001: A Space Odyssey

Buddy Pine is an unhinged superfan of superheroes using technology to take down his idols. See them in The Incredibles.

Foggy Nelson is a principled small-time lawyer fighting for fellow little guys. See them in Marvel Cinematic Universe.

Leone Montana is a fearless hitman with a surprisingly sensitive side. See them in Leon: The Professional.

Tony Montana makes up for his language barrier with his immense skill at cursing as loud and effectively as humanly possible. See them in Scarface.

Beware! Anton Chigurh carries a coin with him, which he forces his victims to flip to decide whether they will live or die. See them in No Country for Old Men.

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.

Talking to a stranger on a train is the best decision Jesse Wallace ever made. See them in Before Sunrise.

A brilliant graduate student in Italy for "research," Oliver has other things on his mind: flirting, swimming, and dancing. See them in Call Me by Your Name.

Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.

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

Crono may not talk, but this time-traveling hero's heart speaks volumes. See them in Chrono Trigger.

Basil Hallward is dominated, soul, brain, and power by Dorian. See them in Dorian Gray.