Capri Anderson, whose real name is Christina Walsh, said she planned to file a complaint on Monday against Sheen in Los Angeles civil court. She said she's suing him for battery and false imprisonment.
Walsh's attorney said she has also decided to file criminal charges with the New York Police Department against the actor, nearly a month after the alleged incident.
She said she waited to involve police because she was scared of Sheen, who she said threatened to kill her during their date in New York City.
Sheen's extortion suit that claims before she went on national television and accused him, she had sought $1 million to keep quiet. Sheen says her allegations are false and that she even stole a $165,000 watch from him, which she was hiding when she locked herself in the bathroom of his hotel room.
The two were in New York last month to attend a dinner. Her agent had contacted her and said Sheen was interested in paying for an escort to go with him to the dinner event in Manhattan.
However, Walsh said rumors of her being promised as much as $12,000 to have sex with Sheen that night are not true.
She said she was only getting $3,500 to have dinner with Sheen and his entourage.
Walsh said when the dinner ended, a friend of Sheen's asked that she accompany him back to his room at the Plaza Hotel to make sure he got there OK. Apparently he'd been drinking.
She says that things became mildly romantic once inside his room at the plaza but that she resisted his advances once he started to get violent with her.
"I didn't speak to (the police) much at all. I was very shaken up. I was crying. I was embarrassed that I was in my underwear when they came in initially. The first cop wasn't very nice. I found him to be very condescending," Walsh told ABC's George Stephanopoulos on "Good Morning America."
In a recent interview on "Extra," Sheen dismissed the incident.
"I mean a guy has one bad night and everyone goes insane and panics. I'm not panicking," he said.
"If Charlie Sheen treated a dog the way he treated Christina Walsh that night he could very well be in jail," said Walsh's attorney, Keith Davidson.
"He was yelling things like, 'If you don't come out here I'm going to kill you. If I get in there you're going to be sorry," said Walsh, who also said he repeatedly called her a whore.
Sheen's attorney, Yale Galanter released the following statement:
"Ms. Capri never made any allegation to the police of any wrongful conduct on the part of Mr. Sheen the night of the incident and she had every opportunity to do so. She also posted on her website that she was "fine" and if you wanted to see more of her, for a price, one could enter the website.
"She has been to a number of law firms who have refused her case because they doubt her credibility. A number of news organizations have refused her story for the same reasons. If she pursues legal action, we will defend this vigorously. These allegations against Mr. Sheen are completely false, and are a blatant attempt to cash in on his celebrity."
Sheen was briefly hospitalized after the incident when hotel workers reported that the actor was acting disorderly and had broken furniture in his room. His publicist, Stan Rosenfield, said the "Two and a Half Men" star had a bad reaction to medication.
Sheen has a long history of bad behavior involving alcohol abuse, drugs and violence against women. Most recently he was on parole for assaulting his estranged wife.