Haha, keep those WWE type-threads coming!
Goldust. Very difficult, this one. Dustin Runnels/Rhodes strikes me as potentially an ISFJ. But Goldust? He went through so many shifts in persona that he'd have to be split up, much like Mick Foley.
Original Goldust: I kinda wanna say INTJ. Definitely an N character. His focus on psychology and manipulation suggests a Thinker-Judger to me. There's no emotion to Goldust. Everything is meticulous and cold, the archetypical mastermind puppeteering his opponents into place. When his trickery failed, Goldust often panicked and lost so he doesn't strike me as the adaptable Perceiver. I'm not sure about E or I, but I'm gonna say I because he strikes me as an Ni-Dom.
The Artist Formerly Known As Goldust: Not too different to his original persona, but much less psychological and more about attention-seeking. I'm really not sure of his type, though. It seemed the whole premise of the character was that he didn't know who he was and had undeveloped ego/identity issues making him hard to type.
Goofy Tourettes Goldust: ENFP. He became way more scatty and sensitive, particularly with Booker T.