Sprite

Sprites are a species of oversized, sapient cricket-like creatures native to the Other World, the afterlife dimension in Dragon Ball's cosmology. They are considerably larger than ordinary insects but still smaller than the average Earthling, standing at roughly the size of a small animal. Despite their insectoid appearance, Sprites are fully sapient beings capable of speech, complex thought, and social organization.

Their natural habitat appears to be the various planes of the Other World, where they have established themselves in roles that range from domestic service to spiritual guardianship. They possess wings and the ability to fly, and their speed is notable enough that catching a Sprite in flight serves as a legitimate training exercise for warriors studying under the Kais.

The most prominent Sprite is Gregory, who resides on King Kai's Planet in the North Galaxy and serves as King Kai's butler and companion. Gregory appears during the Saiyan Saga of Dragon Ball Z, when Goku arrives at King Kai's tiny world after traveling the length of Snake Way. One of Goku's training tasks involves catching Gregory, whose small size and impressive speed make him a deceptively difficult target.

This training exercise, while seemingly trivial, is part of King Kai's method of building a student's speed and reflexes before teaching them advanced techniques like the Kaio-ken and the Spirit Bomb. Gregory's role as a living training tool makes him functionally important to Goku's preparation for the Saiyan invasion, even if the cricket himself is not a fighter.

Gregory also appears in several Dragon Ball Z films, maintaining his role as King Kai's ever-present assistant. His personality is loyal and dutiful, if occasionally exasperated by the chaos that tends to follow anyone connected to Goku.

Beyond Gregory, the Sprite species is expanded in Dragon Ball Z: Attack of the Saiyans, which introduces Montgomery, the Sprite elder. Montgomery serves as the guardian of the Spirit Crystals found in Yemma Forest, an area of the Other World named after King Yemma. His role as a spiritual guardian suggests that Sprites may have a deeper connection to the Other World's metaphysical infrastructure than Gregory's butler duties might imply.

Another unnamed Sprite appears in King Kai's house in the same game, operating as a merchant who sells items to players. These additional Sprites demonstrate that the species has a small but established presence throughout the Other World, filling various niches in its spiritual ecosystem. They are not powerful beings by any measure, but they are woven into the fabric of the afterlife in ways that make them a quiet, consistent part of Dragon Ball's supernatural worldbuilding.