#6. Kane - Debuted at WWE Badd Blood 1997
Considered by many as the most iconic debut in WWE history, Kane's first appearance under his new gimmick was one that fans will never forget. It took place during the very first Hell in a Cell match in 1997 - competed between Shawn Michaels and The Undertaker.
For a while then, Paul Bearer had been teasing the debut of The Undertaker's half-brother. When he finally debuted, he took the WWE by storm by ripping open the cell's cage. He hit The Undertaker with a Tombstone that allowed Shawn Michaels to win the match. The first Hell in a Cell match itself is considered the greatest to date, but there's little doubt as to who stole the show that night - Kane.
#5. Chris Jericho
Chris Jericho's debut on RAW Is WAR is also considered among the greatest debuts in WWE history. The Countdown to the new Millenium clock that had been appearing weeks before had finally run out, and The Rock was confronted by none other than former WCW star, Chris Jericho.
While Chris Jericho didn't get the better of the verbal exchange, the moment and the entire show was stolen by his debut.