He was going to be Brakkus in the WWF- they spent several weeks building him up before his debut, but I guess he was HORRIBLE in-ring, and was pulled pretty quick. He has a blink-and-you'll-miss-it cameo in Bret Hart: Wrestling with Shadows where he's at dinner with the Harts.
His physique may not look as competitive now, but in the pre-1993 Dorain era, he was a freakin' monster. Nobody had seen anything like him before, and I have to think he could have done some damage had he stuck around.