#3 The Undertaker

The Undertaker is arguably the best performer in the history of WrestleMania. Holding the record of maximum appearances as well as maximum wins, Undertaker is known for his once undefeated streak of 21 straight wins at the grandest stage of them all.
Each year, as the Road to WrestleMania starts, the Undertaker shows up in some way or the other to face yet another opponent. Surprisingly, this has not been the case this year. While it can be argued that The Undertaker didn't make a significant appearance last year as well, John Cena had made it clear that the feud was going on even without him showing up.
With The Undertaker currently not booked or advertised for WrestleMania 35, an impromptu appearance or segment would surely make the fans in attendance and watching at home very happy. After all, that cryptic entrance is still one of the best in all of pro wrestling.
Becky Lynch has been challenged HERE.