Bill Cosby will only have to listen to the testimony of one of his many alleged victims, as well as the individual who brought charges against him, when he stands trial in June.
The woman, known as 'Kacey' and 'Prior Alleged Victim Six' will be put on the stand, as well as Andrea Constand - the women who laid the charges.
Prosecutors wanted the court to hear from 13 potential witnesses out of the 50 who came forward accusing Cosby of indecent behaviour.
They wanted to prove his actions were part of a pattern, but Judge Steven O'Neill thought it could be too prejudicial against Cosby - ruling against it.
Cosby is charged with three counts of aggravated indecent sexual assault from 2004 stemming from an encounter with Ms Constand, a former Temple University employee who he mentored.
She said he drugged and molested her; he said the interaction was consensual.
Ms Constand didn't press charges until 11 years later, but will share her side of the story in court in the coming months.
Kacey's story alleges the 79-year-old acted indecently towards her and assaulted her in a Los Angeles hotel in 1996.
His other alleged victims' encounters date as far back as the 1960s.
The former TV star is free on US$1 million bail (NZ $1,390,000) but could get 10 years in prison if convicted.
He is expected in court on Monday and is believed to be lodging a request for jurors outside the Montgomery County where he will stand trial, because they could have been influenced by the heavy publicity.