#4. The Undertaker

While this is probably going to come across as a little selfish, it's tough not to see The Undertaker in WWE right now. In fact, after watching him bury AJ Styles alive at WrestleMania 36 and ride off into the moonlight like the badass he is, it's pretty safe to say that fans want to see more of The Undertaker.
It is asking a lot for the 55-year-old legend to return as a regular character, but his biker gimmick would be so refreshing right now. Even if WWE brought him back as an authority figure on RAW or SmackDown, it would still give the company the shot in the arm they need right now.
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In all honesty, The Undertaker is a man that fans will tune in to watch. He is someone that can make fans hang on his every word, and he could very well be the answer to some of the WWE's issues. All WWE have to do is bring him back on television in a limited role and let his character do the rest.
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