Hank Venture (voiced by creator Christopher McCulloch) is one of the two titular protagonists of the Adult Swim series The Venture Bros., serving as the more extroverted, adventurous, and physically capable twin brother to the more timid Dean. Resembling Fred Jones from Scooby-Doo with his signature neckerchief and blond hair, Hank idolizes the family bodyguard Brock Samson, often imitating his style and adopting the vigilante persona "The Bat" to channel his enthusiasm for action and thrill-seeking.

Brock Samson is a hyper-masculine secret agent and the longtime bodyguard for the Venture family in the Adult Swim series The Venture Bros., voiced by Patrick Warburton. A half-Swedish, quarter-Polish, quarter-Winnebago operative with a license to kill, he is known for his distinctive mullet, vintage 1970s fashion, and fierce devotion to Led Zeppelin.