AceShowbiz - It's safe to say that Joan Collins is not a fan of Prince Harry and his wife Meghan Markle. The "Dynasty" alum threw some serious shade at the Duke and Duchess of Sussex during her appearance on "Good Morning Britain".

In the Monday, September 5 episode of the talk show, Joan was asked for her thoughts on the royals' recent stay in the U.K. The 89-year-old actress responded by sarcastically asking, "Do we need to give any of them more oxygen?"

Not stopping there, the "Tomorrow Morning" star, who was bestowed the title of "Dame" by Queen Elizabeth II in 2014, also specifically blasted Meghan. When the hosts wanted to know Joan's opinion on "any other Duchesses" making headlines, she quipped, "Who could that be? I have no idea."

Joan, who played Harry's great-grandmother, the Queen Mom, on E!'s 2015 series "The Royals", also weighed in on Meghan's reaction to Mariah Carey calling her "diva." Joan said, "I think it's rather nice to be called a diva now and again. I mean, it's supposed to be a compliment actually."

Meghan, however, appeared to have a different take on the matter. "When she said 'diva,' she was talking about the way that I dress, the posture, the clothing, the 'fabulousness' as she sees it. She meant diva as a compliment, but I heard it as a dig," Meghan said in an episode of her "Archetypes" podcast featuring the "Hero" singer as the guest.

The former "Suits" actress added, "In that moment, as she explained to me, she meant it as chic, as aspirational. And how one very charged word can mean something different for each of us, it's mind-blowing to me."

That aside, Meghan and Prince Harry are currently embarking on a mini tour of Europe. Of returning to England earlier this week to speak at a charity event, Meghan said in front of the audience at the One Young World Summit on Monday, September 5, "It is very nice to be back in the U.K."