Vandevel is the commander of a Gamilas battle carrier. He sends a fleet of dive-bombers to attack the Yamato when it is paralyzed by a swarm of corrosive "space firefly" bacteria. However, before he can destroy the Earth ship, his own vessel is similarly rendered powerless, and he is forced to retreat in disgrace. His humiliation earns him a bullet from Dessler ("Leader Dessler, the Vengeful Demon!", "Will the Yamato Perish in the Hollow Planetoid?").