Onus

Onus is one of the supporting antagonists in the animated film, Treasure Planet. He is a small 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.

He is voiced by Corey Burton.

Trivia

 * Onus's voice sounds similar to that of Judge Doom's Toon persona.