Norristown, Pennsylvania (CNN) Prosecutors in the Bill Cosby indecent assault trial on Monday claimed the 79-year-old actor knew exactly what he was doing when he drugged and assaulted Andrea Constand in 2004, while the defense went after the credibility of Constand and another Cosby accuser.

With the streets outside the courthouse lined with television trucks, Cosby arrived arm-in-arm with Keshia Knight Pulliam, who played his daughter Rudy Huxtable on "The Cosby Show." The courtroom was packed with members of the public and media.

Cosby faces three counts of aggravated indecent assault, and he has pleaded not guilty to the charges.

Cosby has said he does not plan to testify. His deposition from Constand's civil suit will stand as his explanation of what happened -- which means the trial likely will hinge on a classic case of "he said, she said."

Beth Ferrier told media outlets in 2005 that she met Cosby in Denver in the mid-'80s. He mentored her for a time, but one night, she said, he gave her a drugged cappuccino. "I woke up in my car in the parking lot with my clothes all a mess," she said. "I wondered, I still wonder, 'What did he do with me? Why was my bra unhooked?'" The two later conducted an "on-and-off consensual affair" that lasted several years, she alleged to People magazine. "He kept luring me in," Ferrier told the magazine. "I felt like I couldn't say no." At the time, Cosby's publicist told People he had no comment.

Beth Ferrier told media outlets in 2005 that she met Cosby in Denver in the mid-'80s. He mentored her for a time, but one night, she said, he gave her a drugged cappuccino. "I woke up in my car in the parking lot with my clothes all a mess," she said. "I wondered, I still wonder, 'What did he do with me? Why was my bra unhooked?'" The two later conducted an "on-and-off consensual affair" that lasted several years, she alleged to People magazine. "He kept luring me in," Ferrier told the magazine. "I felt like I couldn't say no." At the time, Cosby's publicist told People he had no comment.

Helen Gumpel, a model and actress known as Helen Selby professionally, appeared in a bit part in a late-1980s "Cosby Show" episode. A short time later, her agent got a call that Cosby wanted to meet with her. In a statement, Gumpel said that, after Cosby hugged and kissed her in front of onlookers at a New York studio, she was asked back to his dressing room. There, she found Cosby "wearing a loosely tied robe" and then -- with the robe still on -- he put "his crotch area in my face," Gumpel alleged. The comedian touched her shoulders then tried repeatedly to get Gumpel to have a drink he'd made, she said. After her refusals, Gumpel said, "Cosby turned his back to me and walked to the door. Cosby looked at me and his face clouded up, as if he was frustrated and angry, and he told me to leave."

Helen Gumpel, a model and actress known as Helen Selby professionally, appeared in a bit part in a late-1980s "Cosby Show" episode. A short time later, her agent got a call that Cosby wanted to meet with her. In a statement, Gumpel said that, after Cosby hugged and kissed her in front of onlookers at a New York studio, she was asked back to his dressing room. There, she found Cosby "wearing a loosely tied robe" and then -- with the robe still on -- he put "his crotch area in my face," Gumpel alleged. The comedian touched her shoulders then tried repeatedly to get Gumpel to have a drink he'd made, she said. After her refusals, Gumpel said, "Cosby turned his back to me and walked to the door. Cosby looked at me and his face clouded up, as if he was frustrated and angry, and he told me to leave."

Identifying herself only by a first name during a news conference with lawyer Gloria Allred, Chelan said she was a 17-year-old aspiring model who worked at the Las Vegas Hilton when her father's wife sent pictures of her to Cosby. She said Cosby arranged to meet her at the Vegas Hilton "to introduce me to someone from the Ford modeling agency." During that meeting, she said, Cosby gave her "a blue pill, which he said was an antihistamine, with a double shot of Amaretto." She alleged that Cosby lay down next to her on the bed and began touching her sexually and grunting.

Identifying herself only by a first name during a news conference with lawyer Gloria Allred, Chelan said she was a 17-year-old aspiring model who worked at the Las Vegas Hilton when her father's wife sent pictures of her to Cosby. She said Cosby arranged to meet her at the Vegas Hilton "to introduce me to someone from the Ford modeling agency." During that meeting, she said, Cosby gave her "a blue pill, which he said was an antihistamine, with a double shot of Amaretto." She alleged that Cosby lay down next to her on the bed and began touching her sexually and grunting.

Lise-Lotte Lublin was a 23-year-old model in 1989 when, she alleges, Cosby gave her two shots of alcohol that caused her to black out in the Elvis suite of the Hilton Hotel in Las Vegas. Her next memory was waking up at home, unable to remember what happened in the interim, she says.

Lise-Lotte Lublin was a 23-year-old model in 1989 when, she alleges, Cosby gave her two shots of alcohol that caused her to black out in the Elvis suite of the Hilton Hotel in Las Vegas. Her next memory was waking up at home, unable to remember what happened in the interim, she says.

Barbara Bowman was a 17-year-old model and actress who met Cosby in Denver in 1985. Bowman told Newsweek that Cosby visited her numerous times, giving her acting lessons and "flying me around to major cities to events." After she turned 18, Cosby "assaulted (me) a number of times," she said. In an incident in New York, Bowman "had one glass of wine and then I blacked out. I woke up throwing up in the toilet. ... I was wearing a white T-shirt that wasn't mine, and he was in a white robe."

Barbara Bowman was a 17-year-old model and actress who met Cosby in Denver in 1985. Bowman told Newsweek that Cosby visited her numerous times, giving her acting lessons and "flying me around to major cities to events." After she turned 18, Cosby "assaulted (me) a number of times," she said. In an incident in New York, Bowman "had one glass of wine and then I blacked out. I woke up throwing up in the toilet. ... I was wearing a white T-shirt that wasn't mine, and he was in a white robe."

Jewel Allison was a model and aspiring actress in her late 20s when she met Cosby in the late 1980s. She said he offered to help her, inviting her to his home. When she arrived, no one else was there besides Cosby, Allison said. At one point, after taking a few sips of wine, she began to feel "out of it." "I realized that something sexual was going on, but I was unable to stop it," Allison told CNN.

Jewel Allison was a model and aspiring actress in her late 20s when she met Cosby in the late 1980s. She said he offered to help her, inviting her to his home. When she arrived, no one else was there besides Cosby, Allison said. At one point, after taking a few sips of wine, she began to feel "out of it." "I realized that something sexual was going on, but I was unable to stop it," Allison told CNN.

Florida nurse Therese Serignese, 57, told ABC's "20/20" that she was a 19-year-old model visiting Las Vegas when Cosby handed her pills in a private dressing room after a performance. "Take these," Cosby told her, according to Serignese. After consuming the pills, she remembered "feeling drugged, and I was kind of leaning forward, and he was behind me having sex with me. And I -- I remember it because it was not good."

Florida nurse Therese Serignese, 57, told ABC's "20/20" that she was a 19-year-old model visiting Las Vegas when Cosby handed her pills in a private dressing room after a performance. "Take these," Cosby told her, according to Serignese. After consuming the pills, she remembered "feeling drugged, and I was kind of leaning forward, and he was behind me having sex with me. And I -- I remember it because it was not good."

Donna Motsinger, 73, one of the Jane Does in the civil suit with Constand, said she met Cosby while working in a restaurant in Sausalito, California. According to Motsinger, Cosby invited her to join him for his show and she accepted. On the way, they stopped for gas and had a drink. After becoming ill, Motsinger said Cosby gave her what she thought was an aspirin. "After that there was some conversation and laughing and stuff, but then the next thing I remember ... he's next to me, he's got his hands on me and I look up I see the lights of the city. I could see it clear as a bell in my mind right now, the lights of the city coming back and it was all blurry, kind of the lights, and I passed out again," she said.

Donna Motsinger, 73, one of the Jane Does in the civil suit with Constand, said she met Cosby while working in a restaurant in Sausalito, California. According to Motsinger, Cosby invited her to join him for his show and she accepted. On the way, they stopped for gas and had a drink. After becoming ill, Motsinger said Cosby gave her what she thought was an aspirin. "After that there was some conversation and laughing and stuff, but then the next thing I remember ... he's next to me, he's got his hands on me and I look up I see the lights of the city. I could see it clear as a bell in my mind right now, the lights of the city coming back and it was all blurry, kind of the lights, and I passed out again," she said.

Louisa Moritz, seen here in a 1971 episode of "Love, American Style," told TMZ she was in the green room of the "The Tonight Show" at NBC in New York when Cosby paid her a visit. He offered to turn her into a "major star through his direction." Then he forced himself on her, she alleged.

Louisa Moritz, seen here in a 1971 episode of "Love, American Style," told TMZ she was in the green room of the "The Tonight Show" at NBC in New York when Cosby paid her a visit. He offered to turn her into a "major star through his direction." Then he forced himself on her, she alleged.

In a statement released through lawyer Gloria Allred's office, Helen Hayes alleged that Cosby followed her and two friends "around all day" at a summer 1973 celebrity tennis tournament in Pebble Beach, California, hosted by actor Clint Eastwood. Hayes claimed she and her friends tried to avoid Cosby, but he caught up with them in a restaurant, "approached me from behind and reached over my shoulder and grabbed my right breast." "I was stunned and angry, because he had no right to do that and I did not know why he would behave that way," Hayes said. "His behavior was like that of a predator."

In a statement released through lawyer Gloria Allred's office, Helen Hayes alleged that Cosby followed her and two friends "around all day" at a summer 1973 celebrity tennis tournament in Pebble Beach, California, hosted by actor Clint Eastwood. Hayes claimed she and her friends tried to avoid Cosby, but he caught up with them in a restaurant, "approached me from behind and reached over my shoulder and grabbed my right breast." "I was stunned and angry, because he had no right to do that and I did not know why he would behave that way," Hayes said. "His behavior was like that of a predator."

P.J. Masten was a Playboy bunny in her 20s and met Cosby while working as a server at one of Playboy's establishments. He asked her to lunch one afternoon in Chicago, then later called to invite her to dinner, she told CNN. Before the dinner, attended by four other men at the Whitehall Hotel, Masten said, Cosby poured her a drink. "And the next thing I know, it was 4 o'clock in the morning," Masten said. "I woke up in a bed naked, bruised. He was lying next to me, and I slithered out of the bed, my clothes all over the floor. ... I got myself together, I went downstairs, I got in a cab and I went home." Masten recalled "hurting really bad." As to why, she alleged: "There were bruise marks all over me. I knew I was raped by him."

P.J. Masten was a Playboy bunny in her 20s and met Cosby while working as a server at one of Playboy's establishments. He asked her to lunch one afternoon in Chicago, then later called to invite her to dinner, she told CNN. Before the dinner, attended by four other men at the Whitehall Hotel, Masten said, Cosby poured her a drink. "And the next thing I know, it was 4 o'clock in the morning," Masten said. "I woke up in a bed naked, bruised. He was lying next to me, and I slithered out of the bed, my clothes all over the floor. ... I got myself together, I went downstairs, I got in a cab and I went home." Masten recalled "hurting really bad." As to why, she alleged: "There were bruise marks all over me. I knew I was raped by him."

Judy Huth has filed a lawsuit in Los Angeles Superior Court claiming sexual battery and infliction of emotional distress during an incident at the Playboy Mansion, according to court documents. The alleged sexual assault took place in 1974 when Huth was 15 years old. According to court documents, Huth and a 16-year-old friend met with Cosby and eventually went to the Playboy Mansion with him. "He then proceeded to sexually molest her by attempting to put his hand down her pants and then taking her hand in his hand and performing a sex act on himself without her consent," according to the documents. Cosby's lawyer said Huth's claims are "absolutely false" and he accused her of engaging in extortion after Cosby rejected her "outrageous demand for money in order not to make her allegations public."

Judy Huth has filed a lawsuit in Los Angeles Superior Court claiming sexual battery and infliction of emotional distress during an incident at the Playboy Mansion, according to court documents. The alleged sexual assault took place in 1974 when Huth was 15 years old. According to court documents, Huth and a 16-year-old friend met with Cosby and eventually went to the Playboy Mansion with him. "He then proceeded to sexually molest her by attempting to put his hand down her pants and then taking her hand in his hand and performing a sex act on himself without her consent," according to the documents. Cosby's lawyer said Huth's claims are "absolutely false" and he accused her of engaging in extortion after Cosby rejected her "outrageous demand for money in order not to make her allegations public."

In 1970, Tamara Green was an aspiring model in her early 20s. She alleged an incident occurred during a working lunch with Cosby and others. Green told Matt Lauer of the "Today" show that at the lunch, she was suffering from the flu and Cosby "produced two capsules." She said they made her feel "great" at first, but then left her "almost literally face down on the table of this restaurant." Cosby took her to her apartment and started "groping me and kissing me and touching me and handling me and you know, taking off my clothes," Green said. Green further detailed her allegations in a defamation lawsuit against Cosby filed in December.

In 1970, Tamara Green was an aspiring model in her early 20s. She alleged an incident occurred during a working lunch with Cosby and others. Green told Matt Lauer of the "Today" show that at the lunch, she was suffering from the flu and Cosby "produced two capsules." She said they made her feel "great" at first, but then left her "almost literally face down on the table of this restaurant." Cosby took her to her apartment and started "groping me and kissing me and touching me and handling me and you know, taking off my clothes," Green said. Green further detailed her allegations in a defamation lawsuit against Cosby filed in December.

Famed model Beverly Johnson alleged that Bill Cosby drugged her in the 1980s at his Manhattan brownstone, where she'd gone to rehearse lines. During the meeting, Johnson said, Cosby was "very insistent" she drink a cup of cappuccino he had made for her. "After that second sip, I knew I had been drugged," she alleged. "It was very powerful, it came on very quickly." Johnson said she then confronted and cursed at the comedian, claiming, "I wanted him to know he had drugged me." She alleged that Cosby got angry, grabbed her, took her outside and flagged down a taxi for her. Cosby's attorney didn't immediately return a CNN call for comment on Johnson's allegation, which she first made in a Vanity Fair article.

Famed model Beverly Johnson alleged that Bill Cosby drugged her in the 1980s at his Manhattan brownstone, where she'd gone to rehearse lines. During the meeting, Johnson said, Cosby was "very insistent" she drink a cup of cappuccino he had made for her. "After that second sip, I knew I had been drugged," she alleged. "It was very powerful, it came on very quickly." Johnson said she then confronted and cursed at the comedian, claiming, "I wanted him to know he had drugged me." She alleged that Cosby got angry, grabbed her, took her outside and flagged down a taxi for her. Cosby's attorney didn't immediately return a CNN call for comment on Johnson's allegation, which she first made in a Vanity Fair article.

Playboy bunny Victoria Valentino said her friend Francesca Emerson first introduced her to Cosby hoping to help her get work on his show "I Spy" in the late '60s. Valentino said after an interview in his trailer, Cosby invited her and a different friend to dinner, where they drank red wine and Cosby offered her pills to "cheer up," she said. She said she felt "stoned," slurring her words. They then went with him to what she described as a "ballers pad," an office-like space in an apartment building, with two loveseats and no working phone. Valentino said she was feeling "totally out of it" when she saw Cosby attempting to advance on her passed-out friend. She said she began reaching out to Cosby to pull him off her friend when he pushed her down, first pushing himself near her mouth, before turning her around and raping her.

Playboy bunny Victoria Valentino said her friend Francesca Emerson first introduced her to Cosby hoping to help her get work on his show "I Spy" in the late '60s. Valentino said after an interview in his trailer, Cosby invited her and a different friend to dinner, where they drank red wine and Cosby offered her pills to "cheer up," she said. She said she felt "stoned," slurring her words. They then went with him to what she described as a "ballers pad," an office-like space in an apartment building, with two loveseats and no working phone. Valentino said she was feeling "totally out of it" when she saw Cosby attempting to advance on her passed-out friend. She said she began reaching out to Cosby to pull him off her friend when he pushed her down, first pushing himself near her mouth, before turning her around and raping her.

Linda Joy Traitz said Cosby offered her a ride home while she was working as a waitress at a restaurant in Los Angeles that he co-owned in 1969. On the way, they detoured to the beach. They parked and he offered her drugs "to relax," she alleged. After refusing "he kept offering me the pills," she alleged, and it made her feel uncomfortable. She claimed he then groped her chest, pushing her down in the seat and toward the door, and tried to lie on top of her. She got out of the car and ran, she said. She added that she was "absolutely not" raped. He tried to calm her, she said, then drove her home in silence. Traitz has a criminal record in Florida and spent time in prison on a conviction for drug trafficking, according to state records. Cosby's lawyer passed on her lengthy rap sheet. Traitz spoke openly about her record to CNN.

Linda Joy Traitz said Cosby offered her a ride home while she was working as a waitress at a restaurant in Los Angeles that he co-owned in 1969. On the way, they detoured to the beach. They parked and he offered her drugs "to relax," she alleged. After refusing "he kept offering me the pills," she alleged, and it made her feel uncomfortable. She claimed he then groped her chest, pushing her down in the seat and toward the door, and tried to lie on top of her. She got out of the car and ran, she said. She added that she was "absolutely not" raped. He tried to calm her, she said, then drove her home in silence. Traitz has a criminal record in Florida and spent time in prison on a conviction for drug trafficking, according to state records. Cosby's lawyer passed on her lengthy rap sheet. Traitz spoke openly about her record to CNN.

Joan Tarshis was a 19-year-old actress in 1969 when, she said, she met Cosby in Los Angeles. The two became friendly. One night after taping his sitcom, he invited her back to his bungalow and fixed her a "redeye" (a Bloody Mary topped with beer), she alleged. "The next thing I remember was coming to on his couch while being undressed," she told Hollywood Elsewhere. "I was sickened by what was happening to me and shocked that this man I had idolized was now raping me. Of course I told no one." It was the first of two similar incidents, said Tarshis, who is now a journalist and publicist.

Joan Tarshis was a 19-year-old actress in 1969 when, she said, she met Cosby in Los Angeles. The two became friendly. One night after taping his sitcom, he invited her back to his bungalow and fixed her a "redeye" (a Bloody Mary topped with beer), she alleged. "The next thing I remember was coming to on his couch while being undressed," she told Hollywood Elsewhere. "I was sickened by what was happening to me and shocked that this man I had idolized was now raping me. Of course I told no one." It was the first of two similar incidents, said Tarshis, who is now a journalist and publicist.

Linda Brown was a 21-year-old model in 1969 when, she alleges, Cosby drugged and sexually assaulted her in Canada near her hometown. She says she was introduced to the comedian by her then-manager, had dinner with Cosby and was later served a soft drink by Cosby at an apartment. "I took a sip and blacked out," Brown said at a press conference with her attorney in February. "When I awakened, I was naked in the bed beside him."

Linda Brown was a 21-year-old model in 1969 when, she alleges, Cosby drugged and sexually assaulted her in Canada near her hometown. She says she was introduced to the comedian by her then-manager, had dinner with Cosby and was later served a soft drink by Cosby at an apartment. "I took a sip and blacked out," Brown said at a press conference with her attorney in February. "When I awakened, I was naked in the bed beside him."

Kristina Ruehli was a secretary for a talent agency in 1965 that had Cosby as a client. She said she was invited to a party to celebrate a taping of "Hollywood Palace." Ruehli said she and an actress were the only attendees at the party. She said she became unconscious after consuming drinks and later woke up to find Cosby attempting to force her mouth onto his pubic area. She said she pulled away to vomit and drove herself home. It was the last time she would see Cosby, she told CNN.

Kristina Ruehli was a secretary for a talent agency in 1965 that had Cosby as a client. She said she was invited to a party to celebrate a taping of "Hollywood Palace." Ruehli said she and an actress were the only attendees at the party. She said she became unconscious after consuming drinks and later woke up to find Cosby attempting to force her mouth onto his pubic area. She said she pulled away to vomit and drove herself home. It was the last time she would see Cosby, she told CNN.

The now-wife of "The Incredible Hulk" star Lou Ferrigno, Carla Ferrigno, told CNN that Cosby forcibly kissed her at his home in 1967. Carla Ferrigno said she told her husband, whom she married in 1980, about the incident about five years ago and he advised her to stay silent.

The now-wife of "The Incredible Hulk" star Lou Ferrigno, Carla Ferrigno, told CNN that Cosby forcibly kissed her at his home in 1967. Carla Ferrigno said she told her husband, whom she married in 1980, about the incident about five years ago and he advised her to stay silent.

Cindra Ladd, longtime wife of Oscar-winning film producer Alan Ladd Jr., alleges Bill Cosby sexually assaulted her in 1969 when she was single and 21. Cosby's representatives did not respond to CNN's repeated requests for comment.

Cindra Ladd, longtime wife of Oscar-winning film producer Alan Ladd Jr., alleges Bill Cosby sexually assaulted her in 1969 when she was single and 21. Cosby's representatives did not respond to CNN's repeated requests for comment.

Janice Dickinson alleged she and Cosby had dinner in Lake Tahoe, Nevada, in 1982 and he gave her a glass of red wine and a pill she believed was for menstrual cramps. "The last thing I remember was Bill Cosby in a patchwork robe, dropping his robe and getting on top of me. And I remember a lot of pain," she told "Entertainment Tonight." Cosby's attorney said in a statement that Dickinson's allegation was a "fabricated lie" that contradicted what she wrote in her autobiography and what she said during a 2002 New York Observer interview.

Janice Dickinson alleged she and Cosby had dinner in Lake Tahoe, Nevada, in 1982 and he gave her a glass of red wine and a pill she believed was for menstrual cramps. "The last thing I remember was Bill Cosby in a patchwork robe, dropping his robe and getting on top of me. And I remember a lot of pain," she told "Entertainment Tonight." Cosby's attorney said in a statement that Dickinson's allegation was a "fabricated lie" that contradicted what she wrote in her autobiography and what she said during a 2002 New York Observer interview.

In January 2004, Andrea Constand, then a 31-year-old staffer for the women's basketball team at Temple University -- Cosby's alma mater -- was at the comedian's Cheltenham, Pennsylvania, home when Cosby provided her medication that made her dizzy, she alleged the next year. She later woke up to find her bra undone and her clothes in disarray, she further alleged to police in her home province of Ontario, Canada, in January 2005. She was the first person to publicly allege sexual assault by Cosby. The comedian settled a civil suit with Constand that alleged 13 Jane Does had similar stories of sexual abuse. On December 30, 2015, Cosby was charged with sexual assault in relation to the 2004 accusation, Costand's attorney Dolores Troiani confirmed to CNN. That ended in a mistrial after the jury deadlocked in June 2017, but prosecutors immediately announced they would retry the case.

More than 50 women have spoken out to various media outlets about allegations of sexual misconduct by Bill Cosby. Here are 25, in chronological order, who have spoken with CNN, spoken on camera about their allegations or been the subject of responses from Cosby's attorneys. Read more on the allegations and Cosby's denials.

In opening statements, Assistant District Attorney Kristen Feden told jurors that when Cosby "handed those pills to Andrea he knew what affect it would take" and he knew Constand would not be able to refuse his advances.

"Trust, betrayal, and the inability to consent. That's what this case is about. ... This is a case about a man, this man," she said, pointing to Cosby, "who used his power and his fame and his previously practiced method of placing a young trusting woman in an incapacitated state so that he could sexually pleasure himself so that she couldn't say no."

The district attorney at the time of the alleged assault declined to press charges, and in 2006 Cosby settled a civil suit with Constand that remained sealed for almost a decade.

'Like Andrea ...'

Bill Cosby, right, looks on during court proceedings in his indecent assault case Monday.

Defense attorney Brian McMonagle seized on the original prosecutor not leveling charges against Cosby, saying the case was "exhaustively investigated" at the time.

"Their investigation revealed that Andrea Constand had been untruthful time and time and time again," he said.

Though more than 50 women have accused the former "I Spy" star of assault, the trial will focus on the testimony of Constand and one other accuser, Kelly Johnson.

Previous CNN reports about Johnson's account referred to her only as "Kacey." CNN does not normally name alleged victims of sexual offenses, but she is being identified now because of her public testimony in court.

Johnson was the first witness to take the stand in the trial. She testified that she worked as an assistant at the William Morris talent agency from 1990 to 1996, a period in which Cosby was one her boss's most important client.

She testified that Cosby drugged her and then took advantage of her without her consent at a hotel in Los Angeles in 1996. Prosecutors introduced her testimony in an attempt to show that Cosby had a "pattern" in his assaults.

"Like Andrea, at a certain point in their friendship, he invited her over for lunch to discuss her career plans. Like Andrea, he gave her a pill. Like Andrea, she became incapacitated. Like Andrea, when she lost consciousness the defendant grabbed her hand, placed it on his penis and masturbated himself," the prosecutor told jurors.

Accuser Kelly Johnson's testimony

On the witness stand, Johnson said she became familiar with Cosby at the agency and that they would chat about her life and career plans. She called Cosby a person of "utmost importance" within the agency.

Johnson testified that Cosby would often call her "in a fatherly, favorite uncle, Dr. Huxtable type of way." She described going to Cosby's house at his invitation not long before the alleged assault. She said they acted out a scene in a script in which a tipsy woman embraces and kisses a man, which made her feel uncomfortable.

Johnson said Cosby later invited her to lunch at a hotel in Los Angeles and directed her to his bungalow. When she arrived, Cosby told her she "looked like [she] needed to relax a little bit" and offered her a large white pill, she testified.

Fighting back tears, Johnson testified that when she seemed hesitant, Cosby asked her, "Would I give you anything to hurt you?" She said she took the pill because she "felt extremely intimidated." After taking the pill, she felt like she was "underwater," she said.

She then went to the bed and Cosby laid behind her, making grunting noises, she testified. In addition, he put lotion on her hand and then made her touch his penis, she testified through tears.

Johnson said she had no more phone contact with Cosby after the incident. She testified that Cosby then put her job in jeopardy after complaining about her performance to her boss. Soon after, Johnson said, she was terminated by the agency.

Johnson described telling her parents about the alleged assault. When asked why she didn't go to the police, she said, "I was afraid. We were afraid. My father felt so powerless."

Johnson later gave a deposition about the interactions with Cosby in a workers' compensation claim about the incident at the hotel. That statement was the first time Johnson accused Cosby of assaulting her.

On cross-examination, McMonagle sharply questioned Johnson's memory of the timeline of events. Using notes from that workers' compensation deposition in 1996, he argued that her timeline had changed from that deposition to her testimony on Monday.

Johnson repeatedly said she did not recall exactly what she said in that deposition, and admitted that her memory was better at the time.

"I was bawling in that deposition and I didn't even really want to say -- I didn't want to tell anything about what happened," Johnson said.

Cosby, who has said he has vision problems, sat silently during her testimony, at times bowing his head down.

McMonagle repeatedly challenged Johnson, often interrupting her testimony. While cross-examining her, his voice often rose in pitch and became increasingly shrill, ending less with a question than implying an accusation.

A 'he said, she said' case?

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Prosecutors had sought to include testimony from 13 other accusers, but District Judge Steven O'Neill ruled that would be too prejudicial.

In the deposition, Cosby said he had engaged in consensual sexual activity with Constand -- and that he had obtained Quaaludes to give them to women with whom he wanted to have sex. The unsealed deposition was central to Cosby's arrest in December 2015.

In opening statements, McMonagle launched an attack on Constand's credibility, saying she originally told police she had never been alone with Cosby before the assault, that she went to dinner with Cosby and other friends then went back to his house before the assault and that she had no contact with Cosby following the assault.

McMonagle argued that there was no dinner with friends -- Constand went to Cosby's home for career advice -- and they spoke on the phone 72 times after the assault, with Constand initiating 53 of the calls. Sometimes, they spoke for up to 40 minutes, he said.

She had also been alone with him prior to the alleged assault, the attorney said, during a visit to his Foxwoods Resort Casino hotel room in Mashantucket, Connecticut.

The prosecution countered that the defense was trying to distract jurors by talking about inconsistencies, when most of Constand's story is corroborated in Cosby's deposition.

Feden told the jury they would hear portions of a call between Cosby and Constand's mother, and said the comedian's representatives offered to fly them to Florida to discuss the matter. Cosby also offered to pay for Constand's education, which Feden painted as a concession of guilt.

"There are not a lot of facts here that are in dispute," Feden said.

The criminal complaint

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In 2005, Constand, then the director of operations for the women's basketball team at Temple University, told police she had been drugged and assaulted by Cosby, a Temple alumnus who was 37 years her senior.

Sometime between mid-January and mid-February in 2004, Cosby invited Constand to his home in the Philadelphia suburbs to discuss her career plans. She told him she was "drained" and had been missing sleep, according to a criminal complaint.

Cosby gave her three blue pills, saying they would "take the edge off," according to the complaint. Cosby then offered her wine, and after some cajoling, she took a couple of sips, the complaint says.

She began experiencing blurred vision and difficulty speaking, and was "in and out," she told police. According to the complaint, Cosby positioned himself behind her on the sofa, penetrated her vagina with his fingers and put her hand on his penis. She told police she did not consent to the touching.

Cosby starred in "Fat Albert and the Cosby Kids" and "The Cosby Show." Through the latter he turned the lives of an upper middle-class African-American family into a groundbreaking TV sitcom.

His sweater-wearing portrayal of Dr. Cliff Huxtable made him a household name and one of the most beloved comedians in the world. In later years, Cosby became a public moralizer, speaking out against what he saw as the failings of African-American community in raising children.

Cosby is facing a jury of seven men and five women. Two jurors are black. The jurors will be sequestered in the criminal trial for about two weeks, the lawyers in the case have predicted.