Winslet, who won an Oscar in 2008 for her role in Weinstein Company drama "The Reader," called Weinstein's behavior is "disgraceful and appalling."
"I have no doubt that for these women this time has been, and continues to be extremely traumatic," she told Variety. "I fully embrace and salute their profound courage, and I unequivocally support this level of very necessary exposure of someone who has behaved in reprehensible and disgusting ways. His behavior is without question disgraceful and appalling and very, very wrong. I had hoped that these kind of stories were just made up rumours, maybe we have all been naive. And it makes me so angry. There must be 'no tolerance' of this degrading, vile treatment of women in ANY workplace anywhere in the world."
In case you're just catching up, The New York Times published an explosive exposé detailing "decades of sexual harassment" by the powerful Hollywood producer. The report referenced several women, including actresses Ashley Judd and Rose McGowan, who said they were coerced into unsavory situations with Weinstein, who reportedly asked women for massages, to watch him bathe, and even pleasured himself in front of at least one woman against her will.
Weinstein has vaguely acknowledged some wrongdoing on his part, but has also denied many of the allegations.
Dench credited the Hollywood mogul for launching her career, but stressed to Newsweek that she had no idea this was occurring.
"Whilst there is no doubt that Harvey Weinstein has helped and championed my film career for the past 20 years, I was completely unaware of these offenses which are, of course, horrifying, and I offer my sympathy to those who have suffered, and wholehearted support to those who have spoken out."
In a statement to The New York Times, Close said that while she hasn't had an uncomfortable situation with the Hollywood mogul herself, she felt "angry and darkly sad" when she heard the news.
"I'm sitting here, deeply upset, acknowledging to myself that, yes, for many years, I have been aware of the vague rumors that Harvey Weinstein had a pattern of behaving inappropriately around women. Harvey has always been decent to me, but now that the rumors are being substantiated, I feel angry and darkly sad," Close said. "I'm angry, not just at him and the conspiracy of silence around his actions, but also that the 'casting couch' phenomenon, so to speak, is still a reality in our business and it the world: the horrible pressure, the awful expectation ut on a woman when a powerful, egotistical, entitled bully expects sexual favors in exchange for a job."