The 45-year-old actor had launched a multi-million dollar legal battle against the studio and `Two and a Half Men` creator Chuck Lorre after he was fired from the sit-com and is now also taking action against JAMS - who were hired by Warner Bros. to try and resolve the matter out of court - claiming they didn`t provide him with enough notice to prepare for the proceedings and he is also suing for declaratory relief.
Declaratory relief is asking the court to step in and give orders about the pending matter and is done routinely in lawsuits involving labour disputes, with Charlie seeking to halt all arbitration proceedings, despite his employment contract stating that any arguments must be handled that way.
According to RadarOnline.com, Charlie is seeking " a temporary restraining order, preliminary and permanent injunction enjoining and restraining JAMS from administering the JAMS Arbitration until such time as the Court has determined the threshold of whether a valid and enforceable agreement exists between Plaintiffs, Warner Bros., and Lorre, and if so, whether the claims alleged by Warner Bros. and Lorre in the JAMS Arbitration are abitirable."
According to the documents, Charlie - who claims he is acting on behalf of the entire cast of the show by seeking to halt arbitration - believes the way Warner Bros. wanted to use mediation was a "transparent" way of avoiding having to face his accusations in court.
The documents state: "The JAMS Arbitration is a transparent tactic by Warner Bros. and Lorre to make an end around the claims they knew they would soon be facing before this Court in the Sheen Lawsuit."
Charlie`s lawyer Martin Singer previously criticised the decision to bring in JAMS to settle the dispute.
He said: "The subject matter of this dispute is not just Charlie and Chuck Lorre. Our lawsuit involves claims over the entire cast and crew, and there is no right to arbitrate with them.
"Whether we go to arbitration or court, we still feel we will prevail because the facts and law are 100 per cent in our favour. I can understand why Chuck Lorre wants to keep this in a secret tribunal. When the facts come out they will show that he and Warner Bros. had absolutely no basis to terminate my client."