The Gen’Dai were a species of large, sentient beings. Their bodies were made up of a mass of regenerative tentacles, allowing them to regenerate wounds quickly. Once a peaceful culture, the Gen’dai became violent nomads centuries before the Imperial Era after the devastation of the Gen’Dai homeworld.

Rayvis was a member of this species who lived through the rise and fall of the Jedi Order and the creation of the Galactic Empire, and who became at odds with Jedi Knight Cal Kestis. Another member of this species was the bounty hunter Durge.