In this Sunday, April 22, 2018 file photo, producer Eliza Dushku attends a screening of "Mapplethorpe" at the SVA Theatre during the 2018 Tribeca Film Festival in New York. CBS reached a $9.5 million confidential settlement last year with actress Dushku after on-set sexual comments from Michael Weatherly, star of the network's show "Bull," made her uncomfortable. CBS confirmed the settlement Thursday, December 13, 2018. Image Credit: Brent N. Clarke/Invision/AP

In March 2017, Eliza Dushku, an actress known for her work on ‘Buffy the Vampire Slayer’, signed on to play a major role in three episodes of the CBS prime-time drama ‘Bull’, and there were plans to make her a full-time cast member.

Her time on the set began promisingly. The show’s star, Michael Weatherly — a mainstay of CBS’ prime-time lineup for 15 years — seemed friendly. And a producer and writer on ‘Bull’, Glenn Gordon Caron, told Dushku she would be more than a love interest.

Then came a series of comments that made Dushku uncomfortable. In front of the cast and crew, Weatherly remarked on her appearance, made a rape joke and a comment about a threesome. Shortly after Dushku confronted the star about his behaviour, she was written off the show. She believed her time on ‘Bull’ came to a sudden end as a result of retaliation.

After she went through mediation with CBS, the company agreed to a confidential settlement that would pay her $9.5 million, roughly the equivalent of what Dushku would have earned if she had stayed on as a cast member for four seasons.

Details of Dushku’s experiences on ‘Bull’ and the confidential settlement she reached with the company emerged during the course of an investigation that began in August, when CBS Corp.’s board hired the law firms Covington & Burling and Debevoise & Plimpton to examine accusations of sexual misconduct made by multiple women against Leslie Moonves, the company’s former chief executive. The board also instructed the outside lawyers to investigate “cultural issues at all levels of CBS.”

FILE - In this Nov. 1, 2016 file photo, Michael Weatherly attends a special screening of "Doctor Strange" at AMC Empire 25 in New York. CBS reached a $9.5 million confidential settlement last year with actress Eliza Dushku after on-set sexual comments from Weatherly, star of the network's show "Bull," made her uncomfortable. CBS confirmed the settlement Thursday, Dec. 13, 2018. Weatherly told the New York Times in an email that he was simply mocking comments in the script to Dushku, and was mortified and apologized when he learned she was uncomfortable. (Photo by Andy Kropa/Invision/AP, File) Image Credit: Andy Kropa/Invision/AP

In a draft of the investigation report, which was reviewed by ‘The New York Times’, the lawyers said the company’s handling of Dushku’s complaints was not only misguided, but emblematic of larger problems at CBS. When faced with instances of wrongdoing, the company had a tendency to protect itself, at the expense of victims, the investigators wrote.

Dushku declined to comment for this article. In a statement on December 12, CBS confirmed the settlement and pledged to improve working conditions.

“The allegations in Ms Dushku’s claims are an example that, while we remain committed to a culture defined by a safe, inclusive and respectful workplace, our work is far from done,” the statement said. “The settlement of these claims reflects the projected amount that Ms Dushku would have received for the balance of her contract as a series regular, and was determined in a mutually agreed upon mediation process at the time.”

In an emailed statement to The Times, Weatherly apologised for his behaviour with Dushku.

“During the course of taping our show, I made some jokes mocking some lines in the script,” Weatherly said in the statement. “When Eliza told me that she wasn’t comfortable with my language and attempt at humour, I was mortified to have offended her and immediately apologised. After reflecting on this further, I better understand that what I said was both not funny and not appropriate and I am sorry and regret the pain this caused Eliza.”

‘Bull’, an hourlong procedural series that premiered in September 2016, is the 10th most-watched entertainment program on network television. The main character is loosely based on Dr Phil McGraw, who worked as a trial consultant before he became a popular talk-show host.

Weatherly, 50, was a star of the network’s most popular drama, ‘NCIS’, for 13 seasons before CBS gave him ‘Bull’. The character he plays, Dr Jason Bull, is a self-assured trial consultant. He is also a flirt.

When Dushku signed on with ‘Bull’ at $35,000 per episode — a figure that would have increased significantly, if she had continued on the show — there were “well developed plans” to have her become a regular cast member, according to the draft of the investigators’ report.

The investigation’s findings show how Dushku sought to address conduct she found demeaning, why she believed she faced retaliation and how a top CBS lawyer tried to undermine her claims with what investigators described as an “antiquated” view of how a woman should comport herself in the workplace.

On ‘Bull’, Dushku played J.P. Nunnelly, a criminal defense lawyer. Although she would have a running flirtation with Weatherly’s character, the producer, Caron, said he “wouldn’t want intimacy” until the show’s fifth season, according to notes taken by a participant in an interview Dushku gave investigators in September.

But it wasn’t long before Weatherly started making comments that left her feeling uncomfortable. “Here comes legs,” he said on a day when Dushku was wearing a suit, according to the interview notes. On another occasion, Dushku told investigators, he said in front of the cast and crew that he would bend her over his leg and spank her.

In an interview, Weatherly said the remark about spanking was meant as a joke. “I ad-libbed a joke, a classic Cary Grant line from ‘Charade’ or ‘Philadelphia Story,’ and that meant not at all that that was an action I wanted to take,” he said.

Dushku also described to investigators a time on the set when, in character, she made a gesture with three fingers. In response, she said, Weatherly suggested — to laughs from the crew — that she wanted to have a threesome with him and another male cast member.

Because of his status on the show, his behaviour was contagious, in Dushku’s view. She told investigators that a crew member approached her at one point and said with a chuckle, “I’m with Bull,” before suggesting that he, too, wanted to take part in a threesome with her.

The exchange left Dushku feeling “disgusting and violated,” according to the interview notes.

Weatherly said that when he mentioned a threesome, it was not to suggest Dushku take part in a threesome with him and another cast member. “While we’re shooting, in the context of the scene, she held up three fingers, suggesting something,” he said. “And I ad-libbed, ‘Threesome?’”

Then came the shooting of a scene involving a windowless van. With the cameras rolling, in front of the cast and crew, Weatherly said he would take Dushku to his “rape van,” according to the interview notes.

Weatherly said the “rape van” line was an attempted joke that misfired. “The scripted line in that scene was, ‘Hey, young lady, step into my windowless van,’” he said. “I didn’t particularly like that line, so I joked, in order to highlight how distasteful the emphasis of the line was, about an ‘r. van,’ a rape van. Which, in retrospect, was not a good idea.”

Dushku shared her concerns with Caron, who seemed receptive, according to the interview notes, and they agreed that she would approach Weatherly.

She began by telling Weatherly that “everyone loves” him on the set and followed his lead. She pointed out that after he made the threesome comment, a crew member said something similar to her, according to the interview notes. Weatherly asked Dushku who had made the remark and why she did not report it. As Dushku later told the lawyers, she did not have the sense that there was a “safe person you could go to” with that kind of complaint.

After the talk, Weatherly sent a text to David Stapf, president of CBS Television Studios, saying that he wanted to talk about Dushku’s sense of humour. Stapf replied that Dushku made the show better, according to the interview notes.

Around the same time, Dushku expressed the worry to her representatives that Weatherly might go to CBS and get her fired.