In 1985, Eaton, Dennis Condrey and Jim Cornette signed with World Championship Wrestling (WCW) as the Midnight Express, with Cornette as their manager. Shortly after joining WCW, the Midnight Express feuded with the Rock 'n' Roll Express and won the WCW World Tag team Title from them in February 1986 during Superstars on the Superstation. During the course of their heated angle, Eaton and Condrey lost the titles to the Rock 'n' Roll Express six months later. Eaton and Condrey also had long running feuds with The New Breed (Chris Champion and Sean Royal) as well as The Road Warriors (Animal and Hawk). The feud with the Road Warriors included a high-profile Scaffold match at Starrcade 1986, which the Midnight Express lost.
In early 1987, Condrey left WCW, and "Sweet" Stan Lane took his place as part of the Midnight Express. In May 1987, after teaming for only a few months, Eaton and Lane became champions when they won the WCW United States Tag team Title for the first time, a title they would win three times during their time together. A year later, the team was cheered on despite being heels, as the Midnight Express won the WCW World Tag Team Title from Arn Anderson and Tully Blanchard on September 10, 1988. The Midnight Express' run with the title lasted a little over a month-and-a-half before the Road Warriors took the gold from them in a brutal match up, which saw the heel Road Warriors brutalize the now-popular Midnight Express. Now the fan favorites, the Midnight Express had to contend with a team thought to be disbanded forever: the Original Midnight Express, which consisted of Condrey and Randy Rose. The duo was led by Paul E. Dangerously, in a storyline that saw them trying to prove the originals were better than the new version. The surprise appearance of the Original Midnight Express gave Dangerously's team the initial momentum in the feud, but soon after, Condrey left the promotion once more. This forced Jack Victory to be brought in as a replacement as Condrey's disappearance cut the promising feud short.
The Midnight Express then turned their attention to Paul E.'s new team, The Samoan S.W.A.T. Team as well as a new version of The Fabulous Freebirds. Eaton and Lane were defeated by the Freebirds in the finals of a tournament for the vacated World Tag Team Titles. Following this loss, the Midnight Express teamed with their former enemies The Road Warriors and "Dr. Death" Steve Williams to defeat the SST and the Freebirds in a WarGames match at The Great American Bash. Following this feud, Lane and Eaton began having issues with a young new team in WCW known as "the Dynamic Dudes" (Shane Douglas and Johnny Ace). The Dudes admitted that the Midnight Express were one of their favorite teams and asked if Cornette would be their manager as well. Cornette agreed to manage the young team, to the displeasure of the Midnight Express. After arguing with the Express, Jim Cornette stopped accompanying Eaton and Lane to the ring, choosing to only actively manage the Dudes. At Clash of Champions IX, the two teams met with Jim Cornette appearing in a neutral corner, forced to choose between the teams. The Express started out very aggressively, especially for a team that was supposed to be fan favorites, and when the night was over, the Midnight Express had once again established themselves as heels with Jim Cornette in their corner; Cornette had never stopped siding with the Express.
After returning to their cheating ways, the Midnight Express started a storyline with the up-and-coming team of Flyin' Brian and "Z-Man" Tom Zenk over the United States Tag team title. The Express won the title from the young team in early 1990, but lost the belts to The Steiner Brothers (Rick and Scott) three months later. After a loss at the WCW pay-per-view Halloween Havoc 1990, the Midnight Express split up, as Jim Cornette and Stan Lane left the federation, while Eaton chose to remain in WCW. For the first time in almost a decade, there was no Midnight Express.
Eaton was now a singles competitor, and he faced an uphill struggle to establish himself. He wrestled his former opponents in tag team competition such as Brad Armstrong (whom he defeated at WrestleWar '91), Ricky Morton and "Z-Man" Tom Zenk (whom he defeated at Starrcade '90, but lost to at Clash of the Champions XIV), but it was not until he turned face during the early parts of 1991 that he started to move up the rankings. At SuperBrawl I, Eaton defeated Arn Anderson to win the World Television Championship. Eaton's highest profile match as a singles wrestler came when he faced off against the World Heavyweight Champion "Nature Boy" Ric Flair at Clash of the Champions XV in a two-out-of-three falls match. Eaton pinned Flair in the first fall, but ultimately lost to Flair two falls to one. His World Television Championship reign was short-lived, as he came face to face with newcomer "Stunning" Steve Austin, who cheated his way to win the title from Eaton.
Late in 1991, Paul E. Dangerously formed the faction The Dangerous Alliance. Eaton joined the group when he assisted Rick Rude, with the storyline being that Dangerously had brought Rude to WCW, in defeating Sting for the United States Championship. In joining the group, Eaton became allies with Rude, Larry Zbyszko, and his two former rivals for the World Television Championship in Arn Anderson and Steve Austin. Shortly after the group was formed, Anderson and Eaton became its tag team specialists. This seemed to make sense, as both men had been successful tag team wrestlers in their careers; Anderson himself had been a two-time world champion teaming with Tully Blanchard in the Four Horsemen and had also won the belts with Zbyszko earlier in the year. Eaton and Anderson quickly won the WCW World Tag Team Championship by defeating Ricky Steamboat and Dustin Rhodes, the team to whom Anderson and Zbyszko lost the belts, for the championship and held on to the belts for five months before they lost them to the Steiner Brothers. The Dangerous Alliance was a dominant force in WCW. At one point during 1992, they held every title except the WCW World Title, which was held by their main opponent and arch enemy Sting. The war between the Dangerous Alliance and Sting and friends escalated until it was decided to settle it in a double-ring War Games match at WrestleWar 1992. Sting's team won when Sting forced Eaton to give up after Larry Zbyszko accidentally struck Eaton in the arm with a metal rod.
In the aftermath of the War Games match, Zbyszko was kicked out of the Alliance for causing the Alliance loss. Soon after the Alliance disintegrated, Paul E. Dangerously left WCW. Eaton and Anderson continued to team after the Alliance fell apart, now managed by Michael Hayes. Eaton and Anderson worked in the tag team division until Eaton was released from his WCW contract.
In 1993, Eaton was rehired by WCW. Once back on the roster, Eaton teamed up with a young Chris Benoit in Benoit's first stint with WCW. Together they were mainly used to help establish rising teams or give established teams opposition. After Benoit left the company, in Eaton's next venture in tag teaming, under the name "Bad Attitude", he teamed up with Steve Keirn. Bad Attitude's single noteworthy moment together came when they were present as Arn Anderson turned on tag team partner Dustin Rhodes. Otherwise, the team did not get much exposure. During this time, Eaton also made a couple of appearances in ECW due to a talent trade arrangement between WCW and ECW. His most well-known appearance was at the "When Worlds Collide" show on May 14, 1994, where he teamed with Sabu to beat Arn Anderson and Terry Funk.
After Bad Attitude quietly ended, Eaton was placed with British snob "Lord" Steven Regal. A series of vignettes followed, in which Regal educated Eaton on how to be a man of class and sophistication. The Blue Bloods initially feuded with the Nasty Boys (Brian Knobbs and Jerry Sags), their complete opposites in terms of "sophistication" and presentation. They also feuded with Harlem Heat (Booker T and Stevie Ray) over the World Tag Team Championship, but never took the belts, and engaged in a short "Snobs versus Rednecks" program with the Stud Stable (Bunkhouse Buck and Dick Slater). In all of 1996, the team members made only one pay-per-view appearance, as individuals in the "Lethal Lottery" during May's Slamboree. Later that year, Regal won the World Television Championship. Not long after, Eaton was moved out of the group, turning on his partners, wrestling Regal for the Television Championship on two occasions.
The Blue Bloods storyline represented the last serious push that Eaton was given. After the run with Regal and Dave Taylor ended, Eaton wrestled mainly on WCW's weekend show, Saturday Night, occasionally winning against wrestlers low in the rankings and losing to wrestlers above him. Not long after, Eaton left WCW.
On August 4, 2021, Eaton passed away.