Because you like Vegeta in Dragon Ball Z
Simon Belmont is a vampire hunter bravely carrying on the family business. See them in Castlevania.
We're all puppets. Dr. Manhattan is just a puppet who can see the strings. See them in Watchmen.
Hotheaded and arrogant, Kaneda is nevertheless fiercely protective of the biker gang he leads. See them in Akira.
An infamous vampire, Alucard is a one-man killing machine with a philosophical side. See them in Hellsing.
Rukia Kuchiki is a cool and collected warrior who has trouble opening up to anyone. See them in Bleach.
Stoic, cynical, and brilliant, Solid Snake was genetically engineered to be the perfect soldier. See them in Metal Gear Series.
After being resurrected and discovering his new morphing abilities, Alex Mercer uses them to combat the virus now ravaging New York. See them in Prototype Series.
A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.
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.
It turns out Dracula's son Alucard has some pretty severe daddy issues. See them in Castlevania.
Firo Prochainezo is swept up in a world of mysterious women, alchemists, and rumors of a wine that makes it drinkers immortal. See them in Baccano!.