Brock is a fearless and often ruthless killing machine. Though he has since dialed it back since he became the bodyguard for Dr. Venture. He is working harder to control his bloodlust and only looses control in extremely dire situations. With the Venture family, he's relatively laid back though extremely dedicated to keeping them safe. He doesn't just view it as a job, but he views them as his family. He isn't easily fazed and the only thing that really scares him is the supernatural.