Upon signing with WWE in 2011, he was renamed Dean Ambrose and began competing in the company's developmental territories of Florida Championship Wrestling (FCW) and NXT, before joining the main roster in November 2012 as a member of The Shield alongside Roman Reigns and Seth Rollins.

Upon leaving WWE after his contract expired in April 2019, Good reverted to his Jon Moxley character and made his surprise debut the following month at Double or Nothing, AEW's inaugural event.

[4] Mid 20th Century 1970s and 1980s 1990s 2000s 2010s and 2020s Good began working for Les Thatcher in the Heartland Wrestling Association (HWA) promotion as a teenager by selling popcorn and setting up the ring.

[65][66] Ambrose continued to retain his United States Championship against Rob Van Dam at SummerSlam on August 18,[67] Dolph Ziggler at Night of Champions on September 15,[68] and Big E Langston at Hell in a Cell on October 27.

[72] The following night on Raw, The Shield faced Daniel Bryan, John Cena, and Sheamus in order to earn their spot in the Elimination Chamber match for the WWE World Heavyweight Championship.

[104] The following night on Raw, Ambrose competed in the 2015 King of the Ring tournament, but was disqualified from the competition during his quarterfinal match with Sheamus, after interference from Dolph Ziggler.

[113] After defeating Tyler Breeze in the first round,[114] Dolph Ziggler in the quarterfinals[115] and Kevin Owens in the semifinals,[116] Ambrose ultimately made it to the finals at the Survivor Series main event on November 22 but lost to Reigns.

[152] Ambrose would then fail to become the number one contender for the reverted WWE Championship[153] in a fatal four-way elimination match involving Dolph Ziggler, Luke Harper, and The Miz.

[160] He would then continue his feud with The Miz, who was also drafted to Raw in the Superstar Shake-up,[161][162] eventually losing the Intercontinental title to him at Extreme Rules in June, thus ending his reign at 152 days.

[163] Ambrose continued to feud with The Miz, leading up to a rematch for the Intercontinental Championship at Great Balls of Fire on July 9, where he lost as a result of interference by The Miztourage (Curtis Axel and Bo Dallas).

[165] After Rollins failed to gain Ambrose's trust for several weeks,[166][167][168] the two argued in the ring on the August 14 episode of Raw and eventually brawled with each other before fighting off Cesaro and Sheamus and reuniting the team.

[188] The following night on Raw, Ambrose and Rollins aided Universal Champion Roman Reigns in attacking Braun Strowman when the latter attempted to cash-in his Money in the Bank contract, once again reuniting The Shield.

He decided to leave WWE after Vince McMahon made him give a promo on Raw where his character would get inoculated from various diseases out of fear of catching a virus from the fans.

[242][243] Moxley then made further successful title defenses against Mr. Brodie Lee at Double or Nothing on May 23,[244] Brian Cage at Fight for the Fallen on July 15,[245] and Darby Allin on the August 5 episode of Dynamite.

[253] After taking an absence, Moxley returned at the New Year's Smash event on January 6, 2021, but he was attacked by Omega and his allies The Good Brothers (Karl Anderson and Doc Gallows).

[267][268] Moxley defeated Danielson at Revolution in March, but the two began brawling after their match; William Regal, once a mentor to both men on separate occasions, made his surprise debut to break up the fight and force them to shake hands.

[273] On the June 8 episode of Dynamite, Moxley defeated Kyle O'Reilly, the winner of a Casino Battle Royale in the show's opener, to earn the chance to face for the interim championship at the event.

[276] At the Quake by the Lake special episode of Dynamite on August 10, the lineal AEW World Champion CM Punk returned and confronted Moxley, entering into a title dispute.

[284] On October 7, it was announced via press release that Moxley had signed a five-year exclusive contract extension with AEW that will see him take on mentorship and coaching roles, as well as continue to perform for the promotion as an in-ring wrestler.

[297] At the All In event on August 27, the BCC teamed with Santana and Ortiz to face Eddie Kingston, Penta El Zero Miedo and Best Friends (Orange Cassidy, Trent and Chuck Taylor) in a Stadium Stampede match, but lost.

[306] Moxley returned after a hiatus on the August 28 episode of Dynamite with his "Death Rider" music from NJPW,[307] calling out Darby Allin and stating cryptically "This [AEW] is not your company anymore" to Tony Schiavone.

[338][339] On the January 29, 2021, episode of Strong, Moxley returned after an eleven-month absence and attacked Kenta, who had earned a future United States Heavyweight Championship match the previous year by winning the New Japan Cup USA.

[344] However, on the second night of Fyter Fest the following week, Moxley lost the championship to Lance Archer in a Texas Deathmatch, ending his record-breaking reign at 564 days with five successful defenses.

[381] On December 16 at Final Battle, Moxley made his ROH in-ring debut, teaming with Blackpool Combat Members Bryan Danielson and Claudio Castagnoli in a losing effort against FTR (Cash Wheeler and Dax Harwood) and Mark Briscoe.

[382] On March 29, 2024, at Homenaje a Dos Leyendas, Moxley made his Consejo Mundial de Lucha Libre (CMLL) debut, teaming with Claudio Castagnoli, Bryan Danielson, and Matt Sydal in a losing effort against Volador Jr., Blue Panther, Místico, and Último Guerrero.

[36] Referred to as the "Lunatic Fringe" since his time in The Shield after the nickname of Cincinnati radio station WEBN (which itself got it from the song of the same name by Red Rider),[3] Ambrose's WWE gimmick saw him characterized as a mentally unstable and unpredictable wildcard.

[393][394] After becoming a villain in late 2018, Ambrose began proclaiming himself the "Moral Compass of WWE",[198] and this revamped character—with his use of gas masks, fur-lined coats, military attire, and a SWAT-like team to do his bidding—invited comparisons to Tom Hardy's Bane from the 2012 sequel The Dark Knight Rises.

[395] Ambrose's booking during his feuds with Seth Rollins and Bray Wyatt in 2014 was criticized by commentators, including James Caldwell of the Pro Wrestling Torch, who stated that although "he's a utility main eventer", his lack of victories indicated that he was not "a guy" that WWE was positioning "for a 2-3 year sustained run on top".

[426] Good competed at the NAGA Cincinnati Grappling Championships on July 15, 2023, winning the men's no-gi beginner/super-heavyweight/30+ age division by beating Chris Sailor, the only other competitor in that bracket.

[4] He has also called himself a minimalist, revealing that he drove to WWE's training center in his rundown car with only a bag of clothes and the money in his pocket upon accepting their contract offer.