#4 The Rock
On this week's WWE RAW, several reports indicated that The Rock was backstage, promoting the movie he produced, "Fighting with my Family" but didn't come on screen.
There has been speculation over the past few months that the Holywood star would be involved in a match at WrestleMania 35, but there has been no build to any match involving The Rock.
The Rock is a global icon, having had numerous hits on the silver screen, and perhaps WWE could tap into his drawing power by booking him for WrestleMania 35, but in an officiating role.
This would ensure that the match is called down the middle, and also adds star power to the blockbuster match. Perhaps we could also see The Rock turn on one person at the end of the match and set up a potential future match!