One of them, Cori Thomas, told Variety that she was a 16-year-old friend of Mr. Hoffman’s daughter, Karina, and an aspiring actor when she met Mr. Hoffman in 1980. She said that the three of them spent a Sunday walking around Manhattan. Then they all went to Mr. Hoffman’s hotel room to wait for Ms. Thomas’s parents to pick her up, she told Variety.

After Karina left, Mr. Hoffman took a shower and emerged with a towel wrapped around him, “which he dropped,” Ms. Thomas told Variety. “He was standing there naked. I think I almost collapsed, actually. It was the first time I had ever seen a naked man. I was mortified. I didn’t know what to do.”

She said Mr. Hoffman eventually put on a robe, sat on the bed, and asked her to massage his feet. She complied.

“I didn’t know what to do in the circumstance,” Ms. Thomas told Variety. “I didn’t know that I could say no, so I did it. And he kept telling me, ‘I’m naked. Do you want to see?’ ” Eventually the phone rang — it was her mother, who had arrived at the hotel to pick her up, she said.

Ms. Thomas, the daughter of the Liberian ambassador to the United Nations at the time, said she did not tell her mother what had happened until decades later. She said she told close friends and a family member some years later.