Because you like Vaas Montenegro in Far Cry 3
A fight every now and then makes Dante's life a little more interesting. See them in Devil May Cry.
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.
Jin Kazama is a fearsome warrior torn between the darkness and the light. See them in Tekken .
Simon Belmont is a vampire hunter bravely carrying on the family business. See them in Castlevania.
Fighting for a future without fear? Yeah, Chris Redfield believes it is worth it. See them in Resident Evil Series.
A lone wolf with a confrontational streak, Bigby wants to dedicate his life to doing good. See them in The Wolf Among Us.
There are men who embrace destiny and do not show their fear. These are the ones that change the world forever. See them in Dragon Age Series.