'The Crown' Season 4: First Look at Baby Prince William

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The young baby prince joined his parents, Prince Charles and Princess Diana, on their royal tour of Australia in 1983.

Prince William is making his debut on The Crown! In new photos from the set of season four, actors Josh O'Connor and Emma Corrin, who play Prince Charles and Princess Diana, respectively, are seen exiting a plane with their infant son, William. There were also several shots of William being held by his nanny in the show, on the steps of the plane. 

Season three of The Crown follows Prince Charles' love story with Camilla Shand (Emerald Fennell) before Diana is even introduced. The season ends with Charles and Camilla being split up by their families after confessing their love for one another. 

The Crown has already filmed several scenes with Diana, and the introduction of William, who was born on June 21, 1982, shows that the series is well into the '80s. The scenes with William come from the royal couple's 1983 tour of Australia. 

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The real-life Prince William has not seen his family portrayed on screen, according to star Olivia Colman. In a recent appearance on The Graham Norton Show, Colman noted that she met the future king recently.

"It didn't go very well. I met Prince William at a dinner, and he asked what I was doing at the moment before he quickly added, 'Actually, I know what you're doing,'" she recalled. "I was so excited and asked, 'Have you watched it?' His answer was a firm, 'No.' But he was very charming and very lovely."

ET's Rachel Smith recently sat down with O'Connor, and he opened up about filming new scenes as Prince Charles. 

"It's an iconic period for the royal family," he told ET, adding, "So far it's been fascinating. Emma Corrin, who's playing [Diana], is doing an incredible job... We're now in this stage where we all know what happens and so it's kind of more interesting now seeing how Peter [Morgan, the show's creator] carves out a story that we don't know."

Season three of The Crown is currently streaming on Netflix.