Kate, Meghan, George and Charlotte might be much-loved by the public, but it is Prince Philip who is apparently most popular among royal staff.
Actor Matt Smith, who played the Duke of Edinburgh in hit Netflix series The Crown, claimed Philip, 97, is 'the one they all love' because he is a 'man of the people'.
Speaking in an interview with Variety, Smith said: 'All the research I did found him [Prince Philip] to be brilliantly funny, very clever, very popular.
'In the royal house he's the most popular of all of them. If you've talked to any of the staff, Philip's the one they all love really. I think more than a lot of them, he's a bit more of a man of the people.
'The royal protocol hasn't dogged him in quite the same way his whole life and there's a sort of rebellion in him and a naughtiness and a cheekiness.
'I think he's quite affable and open by all accounts with the staff. They all love him.'
Smith jokingly suggested the Duchess of Sussex could return to her acting roots to play herself when her character arrives in the storyline.
Earlier this year the actor revealed how he used his phyiscality and his voice to transform himself into Prince Philip, despite being 'obviously from the wrong class'.