Actress Louisa Moritz stepped out to accuse comedian Bill Cosby of sexually assaulting her in 1970s before she appeared in a late-night talk show.

The actress, who is well-remembered for her performance as Rose in the Oscar-winning movie One Flew Over the Cuckoo's Nest,' demanded that Cosby write a letter to every woman who claimed he assaulted and admit to his actions.

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"He must apologize. He has not accepted one single thing," Moritz said in a tell-all interview with Daily News Monday.

Moritz claimed that Cosby assaulted her in 1971 in the dressing room before she appeared on The Tonight Show.

"He could explain that he's had a problem all his life and finally wants to change something. That would be a good start," she said.

It is Moritz's desire that all women who have been assaulted by Cosby should come together and build a support group or foundation.

Reports surfaced that Moritz is gearing up a class action lawsuit, but she denied this.

Legally, she can't do anything, Moritz, however, believes that "one of the other girls" could file a case and she "could help them with whatever they do."

Moritz recalled what happened when Cosby assaulted.

After knocking on her door, she praised her for her acting, promising her of a great career if she decides to go "under his wing." He stood over as Moritz was seated, then showed her his penis and forced her to put it in his mouth.

Moritz called the incident a "very, very upsetting," eventually resisting his effort to perform oral sex.

Cosby then left and threatened Moritz that he would not help her in her career.

Meanwhile, 77-year-old Cosby called the allegations "innuendos." His lawyer, Martin Singer, shrugged off the claims as "increasingly ridiculous and completely illogical."

Tagslouisa moritz, Bill Cosby, bill cosby rape