Fayvoon is one of John Silver's gang of intergalactic pirates recruited to serve aboard the spaceship RLS Legacy in her expedition to find the legendary treasure of Captain Flint. He is a green reptilianoid quasi-humanoid creature with buggy eyes, a thin neck and slender arms terminating on huge hands. When Silver led the mutiny following the Legacy’s arrival on Treasure Planet, Fayvoon along with Hands and Longbourne, pursued Dr. Doppler, Captain Amelia and Jim Hawkins as they attempted to escape in one of the lifeboats. Thanks to Doppler's unexpected targeting ability, the three pirates ended up falling out of the ship's longboat room from a great height to their deaths.
- He is voiced by Christopher Plummer.