[6] A fan of professional wrestling as a child,[7] he started training at the age of 15, and his parents agreed to support him as long as he gave the same amount of focus to his studies.

[19] At December's No Blood, No Sympathy IV event, Galloway defeated Highlander in an "I Quit" match with Conscience as the special guest referee to win his second BCW Heavyweight Championship.

[23] At the beginning of 2008, McIntyre was separated from Taylor and moved to the Raw brand, making his official debut on 6 January episode of Heat as a face, defeating Charlie Haas.

[44] After losing to Hardy on 25 June episode of SmackDown, Long informed McIntyre that his work visa had expired and that he would be deported back to Scotland immediately.

[56] He began wrestling on SmackDown on 30 December and resumed his tense relationship with general manager Theodore Long, who put pressure on McIntyre to win matches to justify his contract.

[75] Galloway, under his real name, made his first post-WWE appearance on 27 July 2014, returning to work for Mark Dallas at Insane Championship Wrestling (ICW) for the first time in seven years and beginning a feud with Jack Jester.

On 9 February, after retaining the title against Matt Hardy in a match for the Family Wrestling Entertainment promotion in New York, he subsequently renamed it the ICW World Heavyweight Championship.

The following night, at "Alex Kidd in London" at KOKO, Galloway regained possession of the belt and retained it in an Elimination Three Way Dance against Sabu and Jester.

[79] Galloway finished the "Insane Entertainment Tour" by defeating Mikey Whiplash in the main event of "Flawless Victory" on 2 May to retain the ICW World Heavyweight Championship.

At Shug's Hoose Party 2, Galloway turned heel along with Jester and ICW General Manager Red Lightning, aligning to form The Black Label.

As part of the "Road to Fear & Loathing" tour, Galloway retained the ICW title against Rampage Brown, Doug Williams, Matt Daly and Coach Trip.

[87] On 14 June 2024, he made a one-night return to ICW at After Hours, a day before his match at Clash at the Castle: Scotland against World Heavyweight Champion Damian Priest.

[94] Galloway made a series of defenses of both titles between 4 and 6 April 2015 in Scotland, England and Northern Ireland, defeating Marty Scurll, Doug Williams and Joe Hendry, Tron and Luther Valentine in a fatal-four way match.

[113] He returned to Mexico in November to main-event a series of AAA affiliated shows, working three six-man tag matches against Rey Mysterio, Blue Demon and Dr. Wagner Jr.; his partners included Matt Cross, Carlito and Brodus Clay.

Galloway returned to PCW in February 2016, entering the "Road to Glory" tournament, defeating Martin Kirby, Mr. Anderson and Noam Dar, before losing to Rampage Brown in the finals.

[122] On 15 July episode of Impact Wrestling, Galloway won a 20-man battle royal to face Ethan Carter III for the TNA World Heavyweight Championship later that night, but lost after his former The Rising teammate Eli Drake attacked him.

[124][125] On 16 September episode of Impact Wrestling, Team TNA (Galloway, Bobby Lashley, Davey Richards, Eddie Edwards and Bram) defeated Team GFW (Jeff Jarrett, Eric Young, Chris Mordetzky, Brian Myers and Sonjay Dutt) in a Lethal Lockdown match to oust GFW from TNA when Galloway pinned Myers after a Future Shock DDT onto a trash can.

[126] On 23 September episode of Impact Wrestling, after winning a five-way elimination match against Bram, Lashley, Richards and Edwards; Galloway became the number one contender for Ethan Carter III's TNA World Heavyweight Championship.

[136] At Sacrifice on 26 April, Galloway overcame rib injuries inflicted from having been repeatedly speared by Lashley to retain his title over Bound for Gold winner Tyrus.

[139] Galloway was twice unsuccessful in regaining his championship from Lashley due to the involvement of Ethan Carter III, leading to an unsanctioned fight at Destination X on 12 July which ended in a no contest.

On 22 July episode of Impact Wrestling, Galloway defeated Bram in the first round of the tournament but was eliminated from the semi-finals by Mike Bennett following interference from Moose and a third inadvertent collision with EC3.

[141] On 25 August episode of Impact Wrestling, after losing to EC3 for a world title shot against Lashley at Bound for Glory, Galloway attacked special guest referee Aron Rex, turning heel in the process.

[160] Over the next few weeks, McIntyre began a feud with Andrade "Cien" Almas, leading to general manager William Regal scheduling a championship match at NXT TakeOver: WarGames.

[161] The night before that event, McIntyre successfully defended his championship against Adam Cole, with Shawn Michaels as the special guest referee at a house show in San Antonio, Texas.

[197] McIntyre successfully defended the WWE Championship against Seth Rollins at Money in the Bank on 10 May,[198] Bobby Lashley at Backlash on 14 June,[199] and Ziggler at The Horror Show at Extreme Rules on 19 July.

[220] On 18 July, at Money in the Bank, McIntyre competed in the namesake ladder match, but failed to win the briefcase after being attacked by Jinder Mahal, Veer, and Shanky.

[230] On 29 July episode of SmackDown, McIntyre defeated Sheamus in a "Good Old Fashioned Donnybrook" match to become the number one contender for the Undisputed WWE Universal Championship at Clash at the Castle.

He also refused to side with Cody Rhodes, Sami Zayn, and other faces on the roster accepting Jey Uso as a good standing member of the locker room after his actions as part of The Bloodline.

[246] On 13 November episode of Raw, McIntyre turned heel by helping The Judgment Day (Finn Bálor and Damian Priest) retain the Undisputed WWE Tag Team Championship against Rhodes and Uso.

[4] The move was created accidentally during a match when McIntyre was attempting a big boot, but since the leather pants he was wearing were too tight, he had to kick up with the other leg to avoid ripping them, knocking himself out in the process.