Andrew Morton, the royal biographer who catapulted to fame after collaborating with Princess Diana on a groundbreaking biography, has a special connection to the latest season of The Crown hes portrayed in it.

Actor Andrew Steele plays a young Morton in the fifth installment of the series, which covers the royal reporters communications with Diana. The two worked in secret on the bestselling book Diana: Her True Story, in which the princess detailed her struggles with bulimia, her mental health and her crumbling marriage to Prince Charles .

After her death in 1997, Morton revealed that Diana was one of his main sources, and that the two worked with the late royals friend, Dr. James Colthurst, as a go-between for Mortons questions and Dianas answers.

Amid the series depiction of Morton, Diana and Colthursts alliance, the royal biographer told Vanity Fair that there is one omission in the new season hes surprised Netflix didnt film.