Matt Smith, who plays Prince Philip in Netflix drama The Crown, ''feels sorry'' for Meghan Markle because her life is going to change so much now she's marrying Prince Harry.

The 35-year-old actor admits it is ''exciting'' that the former Suits actress has become engaged but reckons it will be quite difficult to adjust to her new life as a member of the royal family.

Smith, who rose to fame playing Doctor Who,, shared his views about the upcoming wedding during a talk moderated by Vanity Fair’s Mike Hogan.

"I feel sorry for her," Smith said. It's such a transition in her life, and it's such a huge thing to take on."

"Life as she knows it is gone. But hey, she's marrying the prince of Britain - how exciting for her.''

Claire Foy, who plays Queen Elizabeth on The Crown, reckons it's great to see the British monarchy evolving and adapting to modern times.

"You realise the fact that Elizabeth forbade her sister from marrying a divorced man; it goes to show how time has changed and how they’ve had to evolve," said Foy, alluding to Markle’s divorce from Trevor Engelson in 2013.

"And they really have. This would not have been conceivable, this would not have happened 50 years ago."

She added: "I think that’s why the monarchy will survive, and thrive, because it’s willing to change and listen to the people and realise that some elements of the institution are outdated and unnecessary."

Meghan and Harry's 16-month whirlwind romance blossomed when they met through mutual friends in London and the pair have been almost inseparable in recent months, with Meghan said to have virtually moved in to Harry's home at Kensington Palace in London.

The pair are set to walk down the aisle next May at St George's Chapel, Windsor Castle.