A group of seven women recently filed suit against The Cosby Show star in Massachusetts federal court, accusing the comedian of calling them liars after going public with claims he drugged and/or raped or sexually assaulted them in decades-old incidents.

Last month (Feb16), Cosby requested to postpone the case so he can deal with a separate, criminal charge of aggravated indecent assault charge, relating to allegations he drugged and sexually assaulted former Temple University employee Andrea Constand in his Pennsylvania home in 2004.

However, the accusers' lawyer, Joseph Cammarata, is blasting the 78-year-old's request and is looking to move the case forward.

"(The) Defendant is not entitled to put a hold on this entire case, merely because he has been criminally charged for an alleged sexual assault that occurred ten years after any of the alleged sexual assaults underlying this case," he writes in his legal challenge.

Cammarata is looking to depose Jones as part of the plaintiffs' case, because he believes the legendary music producer may have knowledge of Cosby's alleged assaults. He also wants to subpoena documents from bosses at talent agency William Morris Endeavor, Cosby's former attorneys Martin D. Singer and John P. Schmitt, and his publicist David Brokaw.

Meanwhile, Cosby's case involving Constand has been temporarily stayed, pending a verdict on the star's appeal asking for the case to be dismissed.

Cosby has been accused of rape, drugging and performing inappropriate sex acts by over 50 women in the past 18 months. The comic maintains he is innocent.