A new photo suggests that a baby Prince William will make his debut on The Crown soon.
The image, published by ET Canada, appears to show the cast recreating Princess Diana and Prince Charles's 1983 tour of Australia and New Zealand, during which they brought their nine-month-old firstborn.
In the photo, which was taken on set in Spain according to the website, the baby can be seen being carried onto the plane, with his parents at his side.
Emma Corrin will play Diana in season four of The Crown, while Josh O'Connor will reprise his role as Charles after being introduced in season three.
The historical drama's third season premiered on Netflix on 17 November.
It introduces Olivia Colman as Queen Elizabeth II. Colman took over as the monarch after she was portrayed by Claire Foy in the first two seasons.
A new photo taken on set suggests that Foy could return to The Crown in a flashback scene.
Prince Philip, meanwhile, was originally portrayed by Matt Smith and is now played by Tobias Menzies.
The change in cast is meant to reflect the passage of time as the series moves on from the Queen's earlier reign to the Sixties and Seventies.
Helena Bonham Carter has joined as Princess Margaret and Gillian Anderson will appear as Margaret Thatcher in season four.
