Because you like Dante in Devil May Cry
Red doesn't like to explain herself. She wants her work to do the talking. See them in Transistor.
A genetic experiment engineered to be the perfect assassin, Agent 47 is cold, professional, and lethal. See them in Hitman.
Sarah Kerrigan is pretty much the Queen Bitch of the Universe. See them in StarCraft .
As a monster-hunter cursed with supernatural abilities, Geralt of Rivia is a cynic burdened by scruples in an unscrupulous world. See them in The Witcher.
Illiterate and oblivious, Crash Bandicoot is still a hero. See them in Crash Bandicoot.
Harry Mason has been told that he worries too much, that he's a little paranoid. But he just wants to protect what he loves. See them in Silent Hill.
A bureaucrat in the Land of the Dead, Manuel Calavera is a jaded, sarcastic loner who just might have a hidden heroic side. See them in Grim Fandango.
If anyone can stay optimistic and friendly under harsh alien rule, it's Alyx Vance. See them in Half-Life 2.