William Jason Reso is a Canadian professional wrestler and actor. He is currently signed to All Elite Wrestling (AEW), where he performs under the ring name Christian Cage. He is best known for his tenures in WWE and Impact Wrestling.

Reso made his debut in 1995. He wrestled in Canadian independent promotions early in his career, where he competed in singles and tag team competition with his friend Edge. In 1998, he signed a developmental contract with the then-World Wrestling Federation (WWF, renamed to WWE in 2002) and made his debut the following year, immediately capturing his first championship in the company, the WWF Light Heavyweight Championship, in his debut match. Edge and Christian formed a tag team and gained notoriety for their participation in Tables, Ladders, and Chairs matches. They won the promotion’s World Tag Team Championship on seven occasions. They are considered one of the major teams that revived tag team wrestling during the Attitude Era. The team parted ways in 2001, after which, Christian held various singles titles, including the European Championship, the Hardcore Championship, and the Intercontinental Championship.

In 2005, Reso departed WWE and signed with TNA under his Christian Cage ring name, after which, he won the NWA World Heavyweight Championship twice. He left TNA in late 2008 and re-signed with WWE in 2009, where he won the ECW Championship and the World Heavyweight Championship twice each until retiring in 2014 due to concussion issues. He was the twenty-third Triple Crown Champion and eleventh Grand Slam Champion in WWE history. He also headlined multiple pay-per-view events between WWE and TNA, and was one of WWE’s most prolific pay-per-view performers.[7] After appearing in the 2021 Royal Rumble match, Reso left WWE shortly after and signed with AEW, again reverting to his Christian Cage moniker, and officially resumed his in-ring wrestling career. Following this, he won the Impact World Championship at AEW Rampage, making his return to Impact Wrestling for the first time since Slammiversary 10 in 2012.