#5 Drew McIntyre
The "Scottish Psychopath", Andrew McLean Galloway had actually made a debut in WWE way back in 2009 when Vince McMahon introduced him as his 'Chosen One'. Considering the dominant force he is today, his first run in WWE was quite underwhelming.
In his first run, Drew was able to be the Intercontinental Champion for 161 days, before losing to Kofi Kingston.
Along with Cody Rhodes, he was also a Tag-Team Champion, before losing it to John Cena and David Otunga (yes they were a team!). Since then he went on a downward spiral.
He revamped his entire career by returning to Independent wrestling, where he tore down the entire indy scene, winning many top championships on the way. On April 12, 2017, Drew made his return to WWE as part of NXT. He defeated Bobby Roode to become the NXT Champion.
In April this year, Drew joined hands with Dolph Ziggler, making a return to the main roster after four years. They are currently the Raw Tag-Team Champions and McIntyre looks set for a long-term main-event push.