3 Biggest WWE Superstars who came from other companies, and 3 who were created in WWE itself

#5 Roman Reigns (homegrown)

Roman Reigns

Roman Reigns was brought in to WWE a decade ago and spent around two years honing his craft in FCW. He debuted on the main roster at Survivor Series 2012, as a part of The Shield. Reigns, Dean Ambrose, and Seth Rollins dubbed themselves "The Hounds of Justice", and quickly established themselves as one of the biggest heel acts on the roster. When The Shield broke up in 2014, Roman was the one to become the breakout star of the stable and was soon pushed to main event status.

He was clearly a homegrown talent, and many believed that Vince McMahon was hell-bent on turning him into this generation's John Cena. Reigns went on to headline the next four WrestleManias, against the likes of WWE greats such as The Undertaker, Brock Lesnar, and Triple H. He is a sure-fire first-ballot future Hall of Famer. There aren't many who can declare that they have defeated The Undertaker at WWE WrestleMania, and have pinned John Cena clean, both of which Reigns was able to accomplish.