Because you like Master Chief (John-117) in Halo
Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.
After figuring out how both the light and dark halves of his soul could co-exist, Jak is maturing into a real hero. See them in Jak and Daxter.
A hardboiled 1940s detective, Cole Phelps is haunted by his past in World War II. See them in L.A. Noire.
Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.
The only thing Albert Wesker cares about is turning himself into a God. See them in Resident Evil Series.
An assassin with supernatural gifts, Corvo Attano is the last guy you should frame for murder. See them in Dishonored.
Did he ever tell you the definition of insanity? Just wait, and this psychopath will do just that. See them in Far Cry 3.
Sarah Kerrigan is pretty much the Queen Bitch of the Universe. See them in StarCraft .
A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.
Clank is the quintessential rational, intelligent robot sidekick. See them in Ratchet & Clank.
Meat Boy tenaciously throws himself into danger, and when he fails, he immediately gets back up and tries again. See them in Super Meat Boy.
Ratchet is a shoot-first, ask-questions-later, and then-shoot-again kind of lombax. See them in Ratchet & Clank.