#2 The Undertaker (Raw after Stomping Grounds 2019):
The Undertaker has made countless chilling returns during the course of his WWE tenure. Still, he manages to catch the WWE Universe off-guard every single time. After a disappointing match with Goldberg at WWE Super Showdown, people expected The Deadman to not pop up until the next Saudi Arabia special in Fall 2019.
However, that didn't turn out to be the case as he ended up returning merely weeks after in a completely unexpected fashion. During Roman Reigns' match against Shane McMahon and Drew McIntyre on the post-Stomping Grounds edition of Raw, The Deadman emerged out of the blue to even the odds stacked against his Wrestlemania 33 opponent.
A top AEW star just called one of his colleagues 'spoiled' and 'narcissistic' HERE.
The Phenom rarely pops up during the Summer season. Combine that with the odd choice of having him save one of his arch-rivals, the return left WWE Audience with plenty of questions. The Deadman is now expected to show up multiple times before WrestleMania 36 to prepare for a supposed "big match" at the Show of Shows.