#2 Seth Rollins

Seth Rollins with Roman Reigns (formerly known as Roman Leakee)
Real name: Colby Lopez
Look who just shut down all of Tony Khan's critics! More HERE.
Original gimmick name: Tyler Black
Matches he wrestled under this name: 1 (in the WWE only)
The 2019 Royal Rumble winner Seth Rollins will face Universal Champion Brock Lesnar at Wrestlemania, this year. Rollins made his WWE debut in 2010 and defeated Trent Barreta in his debut match (as Tyler Black). In this very match, he fought under the ring name Tyler Black.
The WWE then changed his name to Seth Rollins and now the entire WWE Universe know him by this name. Rollins was also the member of popular faction The Shield.
He broke the group in 2014 before reuniting it in 2017. However, last year as well, The Shield got broken again when Dean Ambrose turned on Seth Rollins.
The former World Champion, reportedly, is suffering an injury right now but it is not a serious one. Fans are now hoping for Rollins to slay The Beast at Mania to become the Universal Champion. Now, only time will tell if something like this is going to happen or not.