The cast of Charlie Sheen's upcoming FX comedy "Anger Management" is shaping up to be quite the assemblage of actors who've done battle with Chuck Lorre.

Former "Grace Under Fire" star Brett Butler is in final negotiations to join the cast of Sheen's new series, in a recurring role as a bartender working at the local bar that Sheen's character frequents, an individual close to the negotiations told TheWrap.

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Sheen and Butler share more than a common series; like Sheen, Butler locked horns with Sheen's former "Two and a Half Men" boss Chuck Lorre, who created and executive-produced "Grace Under Fire" until he was removed from production duties [5]due to the pair's arguments over control of the show and Butler's character.

Also read: Like Brett Butler Before Him, Charlie Sheen Is Committing Career Homicide [6]

More recently, of course, Sheen had his own famous showdown with Lorre. That one ended quite differently, with Sheen being tossed from "Two and a Half Men" in early 2011 after erratic behavior and a very public war of words with Lorre. (Sheen subsequently sued Lorre and Warner Bros. Television for $100 million; he eventually settled for a reported $25 million, most of which was profits that Sheen was owed from the show.)

The parallels don't end there; in the later seasons of "Grace Under Fire," Butler developed a painkiller addiction, which prompted ABC to pull the plug on the series in 1998. Toward the end of his run with "Two and a Half Men," Sheen, who has been open in the media about his past drug use, entered rehab early last year, forcing the show into hiatus.

"Anger Management," which premieres on FX on June 28, stars Sheen as Charlie, a former pro baseball player who, after derailing his career with his anger, becomes an unconventional therapist specializing in anger management. The series, which is based on the 2003 Jack Nicholson-Adam Sandler film, also stars Selma Blair and Shawnee Smith.