In 1990, Colter worked for World Championship Wrestling (WCW) as Dutch Mantell, a commentator on WCW WorldWide alongside Tony Schiavone and in 1991, WCW created a stable known as "the Desperados" consisting of Dutch Mantell, Black Bart, and Deadeye Dick. The Desperados were packaged with the gimmick of being three bumbling cowboys looking to meet up with Stan Hansen to go to WCW and become a team. Over the course of a few months, they were promoted through a series of vignettes by which they would be beaten up in saloons, searching ghost towns, and riding horses. Hansen reportedly wanted no part of the storyline and left WCW. Without Hansen, the group were pushed into service as jobbers and were dissolved as a stable before the end of the year.
From 1995 to 1996, Mantell appeared in the World Wrestling Federation as "Uncle Zebekiah." He was the manager of The Blu Brothers until they were released in November 1995 and in January 1996, he returned as just "Zebekiah" and managed Justin "Hawk" Bradshaw until he himself was released in December 1996.
On February 11, 2013, Zebekiah, under the name of Zeb Colter, returned to WWE as the manager of Jack Swagger. Colter's character who strongly advocated anti-illegal immigrant beliefs. On the April 8 episode of Raw, Colter teamed with Swagger in a handicap match against Alberto Del Rio, though Colter never officially entered the ring; they were defeated by Del Rio by submission on Swagger. On the April 29 episode of Raw, Colter was involved in a triple threat match with Ricardo Rodriguez and Big E Langston (representing Dolph Ziggler), with the winner being able to determine the stipulation for the World Heavyweight Championship match at Extreme Rules. Colter lost the match after being pinned by Rodriguez.
On the June 17 episode of Raw, after Jack Swagger suffered a hand injury, Colter aligned himself with Antonio Cesaro. Colter later paired Swagger and Cesaro as "The Real Americans". The Real Americans experienced little success, losing to Los Matadores at the Hell in a Cell pay-per-view and a fatal four-way tag team match at TLC. Cesaro dumped Colter as his manager on the Raw following WrestleMania XXX, instead revealing that he was a new client of Paul Heyman. Colter also started a feud with Paul Heyman, after accusing Heyman of "stealing" Cesaro from him. With The Real Americans dissolved, Swagger and Colter turned face by confronting Lana and Rusev. At SummerSlam, Colter was attacked by Rusev, leaving him off television for two weeks. On the December 1 episode of Raw, Colter's leg was broken by Rusev, writing Colter off of television for nearly eleven months.
Colter returned at Hell in a Cell 2015, utilizing a mobility scooter, where he announced that the returning Alberto Del Rio would answer John Cena's Open Challenge for Cena's United States Championship, where Del Rio was victorious. The next night on Raw, Del Rio and Colter began advertising a union between the United States and Mexico as "MexAmerica", leading to several confrontations with Colter's former protege, Jack Swagger. After Colter caused Del Rio to stumble during one of these confrontations on the December 7 episode of Raw, Del Rio ended his association with Colter. This marked his last appearance in WWE, as he was released from his WWE contract on May 6, 2016.