#1 Sheamus
Stephen Farrelly is Irish born and is now a WWE veteran, making his debut in WWE in 2008, more relatively in dark matches. He made is RAW debut in October 2009.
Sheamus shocked WWE audiences when he put John Cena through a table in a tables match to earn the WWE Championship. He is the first Irish born WWE champion and it would plant the seeds for a successful run for him in WWE.
His accomplishments include being a three-time WWE champion, one -time World Heavyweight Champion, Tag-Team Champion (four times), a two-time United States Champion, King of the Ring (2010), Money in the Bank winner (2015) and Royal Rumble Winner (2012).
Sheamus and Cesaro together have won the Tag-Team championships four times. Currently, he and Cesaro look to win their fifth tag-team championship at the Super Show Down.
Among all the superstars in this list, Sheamus has been the most successful in terms of major championships won and the amount of time he has been on WWE TV.