|“||We were better off on exploding planet!||„|
Onus is one of the supporting antagonists in the 2002 animated Disney film, Treasure Planet.
He is a small green slug-resembling alien bearing six eyes and is one of the pirates in John Silver's crew. As such, he serves as the lookout, as he is constantly seen in the crow's nest of the Legacy. He is one of the only few pirates to survive during their mutiny, as he is arrested by Captain Amelia and Dr. Delbert Doppler for his crimes alongside the remaining crew. Despite his arrest, Onus is last seen cheering for Jim along with the other crew for helping them escape from the exploding planet.
- Onus's voice sounds similar to that of Judge Doom's Toon persona.