the Guild of Calamitous Intent the Investors(Deceased) Long Division Monstroso (Deceased) Mike Sorayama (Deceased) the Monarch Phantom Limb S. At some point, Brock has been fleshed out considerably is his love/hate relationship with former KGB agent-turned-freelance-mercenary and came to refer to her as the "only woman [he has] ever loved." Brock's career as an O. Fantamos as a member of the Guild of Calamitous Intent during the episode The Invisible Hand of Fate. He killed three assassins and played the Monarch against the O. I., only to learn that they had never intended to have him killed in the first place. Later on, he learned that Molotov and Hunter Gathers had hired the assassins and lead him to believe that the OSI wanted to kill him. He generally disdains firearms, preferring to kill instead with his hands or his Bowie knife, but occasionally makes exceptions for certain projectile weapons.
At the beginning of Season 4, after quitting his job with the O. He also has a history with David Bowie, who, in the Venture Brothers universe, is impersonated by a shapeshifter that is the leader of the Guild in addition to a famous performer.
His mullet hairstyle is a trademark of sorts; other characters comment on it frequently, and it earns him the nickname 'Franken-Mullet.' His hair grows steadily longer over the course of the second season, and he grows mutton-chop sideburns. Brock lived with Steve Summers and Sasquatch, during which his body fell horribly out of shape, resulting in a potbelly and devolved muscles. The only villain who seems to be able to communicate with Brock on his own level is Phantom Limb.