Ghost of Princess Diana in BBC film King Charles III 'terribly upsetting' for William and Harry

The show's late star found the moment 'incredibly painful' to perform

Controversial new BBC film King Charles III features the ghost of Princess Diana - something one of the show's stars believes will upset her son's William and Harry.

In the last interview before his passing on 7 April, Tim Pigott-Smith - who plays Princes Charles - told The Times he believed the inclusion of Diana's ghost would be 'agonising' for the Princes.

King Charles III is an adaptation of Mike Bartlett's popular stage production that imagines the first days of Charles' ascension to the throne following the Queen's death.

The provoking moment in question sees Princess Diana's spirit appear to Charles in Buckingham Palace telling the new monarch: “You think I didn't love you. It's not true.”

Pigott-Smith revealed he found the “hyper-sensitive” scene tough to do: “One area of the play I found incredibly painful to do was the ghost of Princess Diana. Just because that whole incident was so terrible.

“I don't think it is presumptuous of us to do it or wrong of us to do it. For Charles or William or Harry it would be agonising to watch. That upsets me. But I don't think we've done anything unreasonable or cruel.”

King Charles III begins on BBC2 next week.

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