Because you like Clank in Ratchet & Clank
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.
There's no obstacle too great for this charismatic treasure-hunter. See them in Uncharted.
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..
Driven by guilt and rage, Kratos is less a man and more an unstoppable avatar of anger and hate. See them in God of War.
NiGHTS is a powerful but childlike spirit who hates being told what to do. See them in NiGHTS into Dreams.
Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.
A super-soldier, Master Chief might be more machine than man. And for humanity's sake, thank God. See them in Halo.
The Kid doesn't talk. He just acts with determination. See them in Bastion.
Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.
To cope with injustice, Connor finds meaning in his strict and unbreakable code of honor. See them in Assassin's Creed Series.
An undercover DEA agent, Max Payne is too focused on avenging the past to plan for the future. See them in Max Payne.
A reformed former outlaw, John Marston doesn't want any trouble, yet somehow trouble always seems to find him. See them in Red Dead Redemption.