Lieutenant Timmons (a.k.a. Trenchcoat Monobrow) is the main antagonist of the Barsoom Circus Command chapter of Book 11: Massively Parallel, acting as a UNS Intelligence agent and agent of the Marineris D.C. Police.
His task was to capture a rogue AI, named Lunesby. In doing so, he was involved with the Barsoom Circus incident, hiring four mercenaries from Tagon's Toughs. By the end of the chapter, he was unsuccessful, as Lunesby was rescued by Jud Shafter, along with evidence that could incriminate UNS Intelligence with the top-secret elephant nanites.