Cosmodart Nazca led as a young commander in the Comet Empire’s vanguard during the Solar System conquest campaign. He directed operations from his personal flagship, the carrier-type vessel *Hailstorm*. Confident in the Empire’s technological supremacy, he initially dismissed the Earth battleship *Yamato* as obsolete. This judgment faltered when the *Yamato*’s enhanced long-range shock cannons countered his forces in combat, inflicting severe fleet losses.

After this defeat, Nazca reported to Gamilon leader Dessler to request aid but was denied. His absence from subsequent narrative events implies execution under the Comet Empire’s strict disciplinary protocols following military failure.

Physically, Nazca featured dark blue hair and black eyes. His surname and design potentially reference the Nazca Lines.

A distinct character sharing the name "Cosmodart" operates in the *Space Battleship Yamato 2199* continuity. Commanding a Nazca Class Astro Strike Carrier in the Gatlantean Eighth Mobile Fleet under Admiral Mazer during 2202, this version held the same rank but displayed calm ruthlessness, relishing enemy suffering. After defeat by the *Yamato* and humiliation by its refusal to destroy his fleet, he grew obsessively vengeful toward the battleship. Defying orders in pursuit, he was destroyed by Supreme Leader Dessler under Emperor Zworder’s command. This figure exists solely in a separate continuity, unconnected to the original Comet Empire narrative.