Her hair and makeup was always flawless - her outfits impeccable.
But that was the character she was playing - not Meghan herself.
"I am so much more low-key in real life. She's so polished," Meghan told Allure.
"And it's in HD (high definition) so the steps that go into looking good on a show are very different than in real life."
When not on screen or attending royal events, Meghan prefers a more simple look.
"I don't wear foundation in real life," she says.
"My routine is very simple — I call it the five-minute face. It's just YSL Touche Éclat, curled lashes, mascara, Chap Stick, and a little bit of blush. That is my favourite kind of look. If I'm going to amp it up for night, then I use M.A.C. Teddy Eyeliner, which is a really beautiful brown that has some gold in it. A makeup artist I work with often, Kayleen McAdams, turned me on to it. It's what she uses on Sofia Vergara, and who wouldn't want those gorgeous brown almond eyes?"
Meghan's other beauty secret is a big one. Dare we say, a life-changer. And it is - lash serum.
"I use Revitalash on my eyelashes, and I swear they are as long as they could ever be," she reveals.
Lash serums have been around for years, but not everyone is convinced they work.
In an interview with CHOICE Magazine, Desiree Stordahl, US-based author and cosmetics expert with Paula's Choice Skincare, declared most eyelash serums ineffective, with only a few exceptions, one of which is Latisse. Latisse is available in Australia but only with a prescription from your doctor.
The other exception - RevitaLash Advanced (which is available online in Australia). According to Desiree, RevitaLash contains a synthetic prostaglandin which can increase lash growth, although there is less research into the product's efficacy. It certainly seems to be doing the trick for Meghan.
Of course, there are other lash serums you can buy in store and online right here, right now. Are they as effective as the one that Meghan's using? You might have to try and find out.