Charles Brenten commands a Tank Police squad, including officer Leona Ozaki. He embodies a macho persona with scant regard for regulations, civilian safety, or property destruction during operations. Brenten possesses exceptional marksmanship, favoring a large, old-fashioned revolver he dubs "the Castigator" over standard automatics, a choice consistent with his lifetime subscription to "How to Kill" magazine. His leadership relies on aggressive tactics emphasizing overwhelming firepower, resulting in substantial collateral damage. This destruction strains departmental resources and worsens the police chief's stress-related health problems. The character's name references the Bren Ten 10mm handgun popularized by *Miami Vice*, though some translations inaccurately render it as "Britain." Brenten maintains a consistent role across media, participating in an investigation into the murder of Leona's friend within the *New Dominion Tank Police* OVA episode "Charles Brenten, Master Detective."