#2 Abyss
I know that a lot of you may think that this idea is outside the realm of possibility. But I follow Impact Wrestling on a weekly basis, and Abyss was wrestling until very recently. He may not be the same performer that he was in his younger days, but he can still go to a degree.
I have been fortunate enough to interview Abyss on more than one occasion and there cannot be a kinder, nicer person than he is. We all know that he is a backstage producer in WWE at the moment, but if he puts on the mask (or even facepaint if you remember his Decay stint), I'd say that he could be a member of the Wyatt Family quite easily.
Abyss is also a very creative person, so he'd be a great lieutenant for Bray Wyatt, even on an off-screen basis. The two men could potentially create some magic!