Because you like Maximus Decimus Meridius in Gladiator

While Alan Garner is loyal to his new friends, his efforts to help them often do more harm than good. See them in The Hangover.

Maya Lambert is an obsessive intelligence officer with tunnel vision leading toward Osama bin Laden. See them in Zero Dark Thirty.

Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.

Most of the world has been wiped out from The Beast. And when The Beast comes, Cole MacGrath will be ready. See them in inFAMOUS.

Riggan Thomson is a washed-up movie star running from his inner demons. Alas those inner demons look just like the superhero he used to play. See them in Birdman.

They say they saved Adam Jensen by turning him into a cyborg, but he's not sure saved is the right word. See them in Deus Ex Series.

Fighting for a future without fear? Yeah, Chris Redfield believes it is worth it. See them in Resident Evil Series.

Jamal Malik came from humble beginnings in an Indian slub filled with street gangs, but he is destined for bigger things. See them in Slumdog Millionaire.

CIA operative Carrie Mathison is on a self-assigned mission to follow a lead, whether it be the truth or just her delusions playing tricks. See them in Homeland.

Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.

A good-natured and academically minded superhero, Dan Dreiberg can still get his hands dirty in a fight. See them in Watchmen.

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