#1 The Undertaker
The Undertaker, at 53 years of age, is the oldest Superstar on this list, and probably the most likely one from this list of 5 to retire at WrestleMania 36.
Many predicted that 'Taker would retire at WrestleMania 35 (many felt that his match at WrestleMania 33, when he placed his hat and coat in the ring after the match, was his last one) but it seems like that may not happen.
With Angle and Batista set to bow out at WrestleMania 35, the WWE may not want Undertaker to usurp Angle and Batista's spot in the limelight by having his retirement match at WrestleMania 35 as well.
A Superstar of The Undertaker's calibre deserves a grand finale, and an old-school match against someone like Triple H would be a great way for The Deadman to finally bow out from the WWE.
Who do you think will retire at WrestleMania 36? Comment below!