She has landed the role of a lifetime that would naturally make anybody feel a bit potty about the monarchy.
But Olivia Colman, 45, has said she has become so "obsessed" with the Queen while playing her in The Crown that she has even stolen some royal toilet paper.
The actress said she met the Queen and Prince William since landing the lead role in the Netflix show and when she visited Buckingham Palace she wanted a little memento.
She told Sunday Times Culture: "I've met the Queen in a line-up at the BFI, and the lovely Prince William at a charity do at the palace. I was very uncool, and he was charming.