Netflix’s “The Crown” has seen its fair share of acting royalty portrayingQueen Elizabeth II.

But how did Foy portraya young Queen Elizabethso effortlessly?

For Foy, getting the voice right was essential to get into character.

Claire Foy on the red carpet

“It wasn’t so much her voice but her voice at the time,” she toldVariety.

“That was key to get my head around.”

From studying her mannerisms, Foy formulated a trick to help her get into the monarch’s mind space.

Claire Foy as Queen Elizabeth II in The Crown

“She plays with her hands and her wedding ring quite a lot.

Which is really quite telling,” the actress explained.

“She’s not massively gesticulatory.

Claire Foy in The Crown

I tried to remember that she’s far more solid and connected to the earth than I am.”

Fortunately for Foy, the research team on “The Crown” had her covered.

Aside from learning about Queen Elizabeth and the royal family, Foy had to master the monarch’s wardrobe.

Claire Foy accepting Emmy award in 2018

These outfits, in particular, often made her stop and think how unbelievable the whole situation was.

She uses power, a bit of blush, and lipstick."

For Peter Morgan, the creator of “The Crown,” Foy’s performance was “transformative.”

“Because that’s who she is.

She’s very matter-of-fact, very practical.”