Meghan Markle's 'Suits' Co-Star Sarah Rafferty Talks Prince Harry Relationship: 'It's Very Exciting'

It appears just about everyone close to Prince Harry and Meghan Markle approves of the relationship!

Harry confirmed he was dating the gorgeous 35-year-old actress earlier this month, and in a new interview, Meghan's Suits co-star, Sarah Rafferty, gives her two cents on the new couple.

"I don't comment on my castmates' personal lives, but of course, it's very exciting," Sarah tells the AP. "And I'm very happy for her."

WATCH: EXCLUSIVE -- Meghan Markle's Sister Reveals Her 'Normal' Upbringing, Likens Her to Princess Diana

Sarah, of course, isn't the only one happy about Meghan and Harry's romance. ET recently spoke to Meghan's half-sister, Samantha Grant, who had nothing but glowing things to say about her sibling.

"She's got the eloquence of a Condoleezza Rice, and the grace of Princess Diana," Samantha told ET exclusively about Meghan. "She's not wild, she's not garish, she's not a partier. She's just very beautiful and conservative, very real, very giving. She's just a peaceful person."

"At a young age, she was thrust into this position of requiring her to be articulate and graceful and worldly and mature," she continued. "She's definitely strong enough to embrace gracefully whatever challenges come her way."

Sources say Meghan has already met Prince Harry's brother, Prince William, and his sister-in-law, Kate Middleton, when she stayed with Harry at Kensington Palace earlier this month. Harry has also already introduced Meghan to his "close inner circle of friends," a source told ET.

"They really like her, and like that he is happy," the source said.

WATCH: Meghan Markle and Kate Middleton Wear the Same Dress!

ET exclusively spoke to former royal chef Darren McGrady earlier this month, when he said that Harry's late mother, the beloved Princess Diana, would have been "thrilled" with Meghan.

"The Princess -- having seen Meghan's track record and the sort of work that she does and that she is interested in fashion -- they'd have so much to talk about," McGrady mused. "Princess Diana would be thrilled that she could talk to Meghan about fashion. We know that Meghan also does a lot of charity work and that would be a big bonus, too, in getting the Princess' approval. We also know that she is beautiful, and of course, who wouldn't want a beautiful bride for their son?"

Watch below:

EXCLUSIVE: Princess Diana's Former Chef on How Prince Harry's Mom Would Feel About Meghan Markle

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