Masterson, 44, who has been free on bail since his June arrest, stood in court in a blue suit and face mask next to lawyers Tom Mesereau and Sharon Appelbaum, as the three women sat in the gallery.
Masterson did not enter a plea, but Mr Mesereau said the charges, based on events nearly 20 years old, were the result of unfair hype from media outlets and pressure to prosecute his client as Los Angeles County District Attorney Jackie Lacey faces an election.
“There have been repeated attempts to politicise this case,” said Mr Mesereau, who also represented Bill Cosby and Michael Jackson in their sexual misconduct cases.
“He is absolutely not guilty and we’re going to prove it.”
Deputy District Attorney Reinhold Mueller called the statements “pure speculation, with no basis in fact”.
Mr Mesereau spoke as the judge was considering media requests to allow cameras in court, which he approved.
Mr Mesereau argued that the media presence would be unfairly prejudicial to Masterson and taint potential jurors.
“We want to do anything we can to tone down the cameras and the circus-like atmosphere that have pervaded this case,” the lawyer said.
“We’re just trying to protect his rights.”
Superior Court Judge Miguel T Espinoza also denied a request from the defence for a protective order sealing case files and preventing police, prosecutors and potential witnesses from revealing case information to the media, but said he would reconsider similar request later.
The defence has filed documents asking the criminal complaint against Masterson be thrown out as insufficient. A hearing on the issue will be held before Masterson is asked to enter a plea.
Masterson’s arrest came after a three-year investigation that resulted in the rare prosecution of a famous Hollywood figure in the #MeToo era.
Despite dozens of investigations, most have led to no charges based on lack of evidence or too much time passing.
About 20 friends and supporters accompanied Masterson to court, standing in the courthouse hall with him as he awaited the hearing, but only a few were allowed inside the courtroom because of coronavirus distancing requirements.
He spoke only to answer “yes” to the judge’s questions.
Masterson is charged with three counts of rape by force or fear. Prosecutors allege that he raped a 23-year-old woman sometime in 2001, a 28-year-old woman in April of 2003, and a 23-year-old woman between October and December of 2003.
Prosecutors said all of the alleged attacks happened in his home.
He could face up to 45 years in prison if convicted.
The alleged rapes came at the height of Masterson’s fame as he starred as Steven Hyde on the ensemble retro sitcom That ’70s Show alongside Ashton Kutcher, Mila Kunis and Topher Grace. The series ran on Fox TV from 1998 to 2006 and has had a long afterlife in reruns.
He was removed from the Netflix show The Ranch in 2017 over the allegations that would eventually lead to the charges.
