Major Tom?
I believe there's a character on the cartoon Chaotic named Major Tom, at least that's what I thought I heard while flipping through the channels and happened upon Chaotic on Toon Disney. Now many of you are probably too young to get the reference but Major Tom was rock legend, David Bowie's first successful persona. He was the character in his song Space Oddity (His first commercial hit) and then later his song Ashes to Ashes.
Major Tom as a ghost also appears in The Venture Brothers as well as The Action Man, another character from David Bowie's song Ashes to Ashes, in fact the first scene of that episode is dialogue consisting only of David Bowie song lyrics. David Bowie appears as a character repeatedly in The Venture Brothers as a powerful shape shifter version of himself. Hmm... Jareth from Labyrinth?
Adam Sandler also sings Space Oddity in the film Mr. Deeds.