#3 PAC
Details as to whether the former Neville's departure from WWE was amicable or forced are sketchy. Given the circumstances under which he disappeared from the promotion, it should come as no surprise that there has been little-to-no discussion on the manner of his departure by either party.
After a strong run in NXT, Neville had a rocky start on the main roster. After returning from an injury, however, he would quickly make a name for himself in the Cruiserweight division, where he won the WWE Cruiserweight Championship and held onto it for the better part of a year before losing the title to an emerging Enzo Amore.
Upon learning he was due to lose once again to Enzo (who would also leave the company in less than favourable circumstances), Neville reportedly stormed out and was never seen on WWE programming again.
While WWE were keen to paint a good picture of the relationship between employer and employee, their decision to freeze his contract (effectivley preventing him from wrestling in any other promotion) seemed to be an unfair move and certainly indicated a bitter end to Neville's WWE story. The contract dispute came to and end in August 2018 after 10 long months and he was free to do as he pleased. Details on how he and WWE came to an agreement on his release have never been revealed.
He returned to his former stomping grounds in Japan, the Dragon Gate promotion, and quickly became their top champion. He held the championship for over 7 months before departing the company and joining the upstart All Elite Wrestling, which he had been in contract negotiations with for months before his championship loss. Today, you can find PAC, which was his ring name before WWE and has become his name once again after his departure, as one of the top singles competitors in AEW, where he's partaken in numerous Match of the Year contenders against, most notably, Kenny Omega. Don't expect PAC to find his way back to WWE any time soon, if ever again.