Carl Jenkins starts his journey as a student in Buenos Aires, forging enduring bonds with Johnny Rico, Carmen Ibanez, and Dizzy Flores. Early displays of psychic aptitude secure his entry into a Federal Study program, where he conducts covert experiments on classmates and animals. Graduating alongside Carmen, he enlists in the military, channeling high test scores and psychic promise into a Military Intelligence role. Transfer to the GAMES & THEORY division accelerates his ascent, with strategic insights propelling his rank upward during Federation campaigns. During the 1997 conflict, he shifts from tactical advisor to architect of the Brain Bug’s capture, harnessing psychic links to verify its terror. This triumph earns him a colonelcy, though his calculated methods fray trust with Johnny. By *Starship Troopers: Invasion*, he commands the Ministry of Paranormal Warfare, prioritizing shadow operations over personal ties. His clandestine hijacking of the *John A. Warden* triggers a lethal Arachnid outbreak, endangering Earth. A fractured psyche follows failed telepathic communion with a Queen Bug, yet he rallies to help survivors, unveiling a scheme to engineer Federation-aligned bugs for warfare. In *Traitor of Mars*, he exposes Sky Marshal Amy Snapp’s plot to annihilate Mars. Arrested for defiance, he secretly aids Johnny by manifesting a spectral projection of Dizzy, steering efforts to disarm a planet-killing Q-Bomb. After averting disaster, he reclaims power, restores Johnny’s command, and assumes interim Sky Marshal duties, balancing allegiance to Federation doctrine with morally ambiguous choices. His persona evolves from driven idealism to calculating isolation, marked by growing secrecy. Though manipulation strains friendships with Johnny and Carmen, underlying respect endures. He repeatedly relies on Johnny’s combat prowess during crises, merging personal history with cold pragmatism. Psychic powers surge from rudimentary telepathy and animal influence to commanding sentient Insectoid probes and bridging minds with Arachnid royalty—gambits risking psychic collapse. These advancements solidify his role as a cornerstone of Federation strategy, merging experimental science with cerebral combat tactics.