If you are counting the WWE nWo as well then HBK is also included..... Technically.
Yoko, This one I am not sure on, but. Although he really played the dominant monster heel character pretty damn well for close to 3 years. But at the same time after 1997ish he seemed to fall of the map and roughly a 5 year run I don't think isn't enough to judge on for a legit HOF. But he fits all the WWE requirements; he wrestled in the 80s or 90s, held a championship and he died. He is as good as in.
Scott Hall?