Colby Daniel Lopez is an American professional wrestler and actor currently signed to WWE under the ring name Seth Rollins. Prior to signing with WWE, Lopez wrestled as Tyler Black for Ring of Honor (ROH), where he held the ROH World Championship once and the ROH World Tag Team Championship twice (with Jimmy Jacobs), as well as the winner of the 2009 Survival of the Fittest tournament. He also wrestled for various independent promotions including Full Impact Pro (FIP), where he was a one-time FIP World Heavyweight Champion, as well as Pro Wrestling Guerrilla (PWG), where he was a one-time PWG World Tag Team Champion (also with Jacobs).

After signing with WWE in 2010, he was sent to its developmental territory Florida Championship Wrestling (FCW) where he was the first FCW Grand Slam Champion. After WWE rebranded FCW into NXT, he became the inaugural NXT Champion. Rollins debuted on WWE's main roster in 2012 alongside Dean Ambrose and Roman Reigns as The Shield. Rollins won his first main roster championship while with the group, the WWE Tag Team Championship, with Reigns. Following The Shield's first breakup in June 2014, Rollins has gone on to become a two-time WWE World Heavyweight Champion, one-time Intercontinental Champion, a one-time United States Champion, a three-time WWE/Raw Tag Team Champion (with Reigns, Ambrose and Jason Jordan, respectively), the 2014 Money in the Bank winner and the 2015 Superstar of the Year. Upon winning the Intercontinental Championship at WrestleMania 34, Rollins became the twenty-ninth Triple Crown Champion and the eighteenth Grand Slam Champion.

Rollins has headlined numerous major pay-per-view events for WWE, including WrestleMania 31. Industry veteran Sting, who wrestled his final match against Rollins at Night of Champions on September 20, 2015, described him as the most talented professional wrestler he has ever seen or worked with.