The titular, unnamed "Killer" is a nihilistic assassin with little care for anything in the world except his family and money. An immensely skilled murderer who knows how to make any number of deaths look like accidents or suicides to cover his tracks, the Killer takes down rivals and mob bosses should they cross his path, and rarely loses his cool even in the most tense situations. Taking out politicians, businessmen, and all forms of powerful individuals with grace and genius, the Killer eventually allies with Haywood and Mariano in becoming legitimate businessmen by stealing an idea from their current employers. Even when exposed and sent on the run by pursuing governments, the Killer sets his family up in a hidden village, amicably parts ways with his compatriots and disappears without a trace, musing to himself that even if he's eventually found and made to pay for his crimes, he's content with the way he's lived his life.
Haywood is the charming, pragmatic third wheel to the Killer and Mariano's partnership, coming in late to the game but quickly establishing himself as the most intuitive and strategic of the trio. Devising the brilliant scheme to take advantage of the Killer's recent paid hits revolving around oil tycoons, Haywood concocts an oil company for himself, Mariano and the Killer to swoop in and take control of the very oil their employers had planned to, making themselves a fortune and going straight for years while raking in the dough. With a keen eye for any potential threats and the ruthlessness to round up and execute a group of hired thugs sent to spy on him, Haywood ends the comic assuming direct control of the oil company for himself after Mariano's drug abuse and death, having predicted such a circumstance and sending the Killer off with friendly words while revealing his intent to live large for as long as he can in case his past as a deadly CIA agent ever comes back to haunt him.
