Leonardo Medici Bundle, one of three chief officers within the Docooga Crime Syndicate led by NeoNeros, embodies a dandy archetype, often depicted holding a rose or a glass of red wine. His first and second names evoke historical figures Leonardo da Vinci and Lorenzo de' Medici.

Initially loyal to Docooga, Leonardo participates in a temporary alliance with the opposing Good Thunder team against a mutual threat endangering all factions. This cooperative act paves the way for his eventual defection. He ultimately abandons NeoNeros alongside fellow officers Yatta-la Kernagul and Suegni Cuttnal, siding with the protagonists to defeat their former leader.

His characterization deepens significantly in the film sequel *The Time Étranger*, set forty years after the series. Leonardo reunites with former allies and enemies at the bedside of comatose former teammate Remy Shimada. Within Remy's subconscious struggle, he appears with the others in a surreal town confronting the metaphysical Beast of Fate. Here, his cultured persona manifests through calmly playing piano amidst a bar brawl and delivering philosophical dialogue. He demonstrates resourcefulness by commandeering a police motorcycle during a vehicular pursuit and wielding a katana against the Beast. Interactions and supplementary materials imply subtextual romantic tension with Remy.

Throughout the film, his actions consistently reflect loyalty to the group and strategic competence. He contributes effectively to collective efforts against existential threats in both realities, reinforcing his role as a cultured yet capable figure.