Here is five WWE Hall of Famers who have not wrestled in the Royal Rumble despite the chance to have wrestled in one. This means they were either with the WWE when a Rumble was held or at least active wrestling.
1. Michael P S Hayes
This one may be a bit of a cheat. Michael Hayes has only been a producer for the WWE. However, he did have a try out match for the promotion in 1995 shortly before his retirement due to back issues. However, since the Royal Rumble is a place where nostalgia runs wild there has been plenty or chances for him to pop in for a quick appearance.
2. Larry Zbyszko
Another man who should have had all the chance in the world to particpate in the Royal Rumble as a nostalgia pop. Larry Zbyszko was trained by the legendary Bruno Sanmartino. Thier feud that culminated at Shea Stadium in a steel cage. Zbysko did have his last match until 2015. So it seems like the only way to see this living legend in one would be thr WWE 2K16 video game.