8. Royal Rumble 1990 & 1991 - Hulk Hogan
When Hulk Hogan entered his first Royal Rumble match, he was in the midst of his second WWF Championship reign - having won the title back at WrestleMania V. He would go on to win that Rumble but, more notably, it set up his program with The Ultimate Warrior that would lead to their WrestleMania VI main event.
The following year, Hogan was without his championship - having lost it in that bout with the Warrior - entered the Royal Rumble match and, for the second year in a row, won. Coincidentally (well, not really), the Ultimate Warrior had lost that same title to Sgt. Slaughter - thanks to interference from "Macho King" Randy Savage. Hogan would go on to face - and defeat - Slaughter for the belt at WrestleMania VII.
Following WrestleMania VII, Hogan seemingly vanished off the face of the Earth.
Seriously, though, you all know what Hogan's career was like after that. Nowadays, Hulk has mostly kept a low profile - probably due to the fallout of his sex tape/saying racist stuff scandal from a few years ago. Hogan has appeared ata number of WWE events over the years - most recently alongside Jimmy Hart at the latest Raw Legends Night.