Because you like The Terminator in The Terminator
Altair Ibn-La'Ahad is as much a philosopher and detective as he is a killer. He takes nothing at face value and continually searches for deeper truths. See them in Assassin's Creed Series.
If anyone can stay optimistic and friendly under harsh alien rule, it's Alyx Vance. See them in Half-Life 2.
Although Borat has a curious mind, he has no filter, and some very out of date views on just about everything. See them in Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan.
A jaded skeptic who only wants to get paid, Garrett becomes involved in bigger struggles that force him to be less self-serving. See them in Thief.
Aiden Pearce is a hacker who knows how dangerous the world can be, both online and off. See them in Watch Dogs.
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.
Shaun is used to being lazy. And now, you're asking him to fight for his life? See them in Shaun of the Dead.
For Kazuya Mishima, the power of the Devil is now his and his alone. See them in Tekken .
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.
Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.
Anyone who's said "Don't worry, it's just a dream" never met Freddy Krueger. See them in A Nightmare on Elm Street.