Because you like Stewie Griffin in Family Guy
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.
Rayman is a fearless hero who flies into action with a propeller on his head and a smile on his face. See them in Rayman.
Foul mouthed and disturbingly comfortable with violence, Hit-Girl is a precocious assassin who doesn't need anyone's protection. See them in Kick-Ass.
A gruff and hardened professional, Marcus Fenix keeps his emotions buried deep. See them in Gears of War.
Frank West enjoys the adventure that comes from his work. But a zombie outbreak might be a little too much even for him. See them in Dead Rising.
Ruling with an iron fist, Pablo owns the drug trade and is bathing in the fame and wealth that the cocaine trade in Columbia offers. See them in Narcos.
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.
All it takes to change the course of history is the will of a single man called John Price. See them in Call of Duty Series.
Shaun is used to being lazy. And now, you're asking him to fight for his life? See them in Shaun of the Dead.
His superiority complex coupled with his bitter desire for revenge makes Vegeta a formidable foe. See them in Dragon Ball Z.
If there's any hope of resolving things peacefully, this proud ape leader will have to trust the humans. See them in Dawn of the Planet of the Apes.