He is voiced by Phil Proctor. He also appeared as a collectible mini-figure in 2002 where his true name was revealed. According to the Disney product his real name was Pigors.
Link to proof of mini-fig: http://disneycollection.se/category/treasure-planet/
Characters: Jim Hawkins | John Silver | Morph | Sarah Hawkins | Dr. Delbert Doppler | Captain Amelia | Mr. Arrow | B.E.N. | Billy Bones | Scroop | Captain Nathaniel Flint | Turnbuckle | Torrance | Verne | Blinko | Zoff | Leland Hawkins | Onus | Longbourne | Grewnge | Hedley | Fayvoon | Hands | Crex | Mertock | Krailoni | Aurora Mayflower
Creatures: Orcus Galacticus