Prince HarryPrince HarryMeghan, Prince Harry visit One World Trade Center The Hill's 12:30 Report - Presented by Facebook - All hands on deck in negotiating .5T reconciliation bill Harry and Meghan join celeb-filled vaccine equity event MORE says that the aggressive British press is part of the reason he and Meghan MarkleMeghan MarkleHarry and Meghan join celeb-filled vaccine equity event Royal family supports BLM movement, senior representative says Culture editor Emily Jashinsky says groups like Time's Up pose conflicts of interest MORE decided to step back from their royal duties.

During an interview on “The Late Late Show with James Corden" that aired Thursday, the Duke of Sussex, who now lives in North America, said the media was “destroying” his mental health.

“It was a really difficult environment, I think a lot of people saw. We all know what the British press can be like, and it was destroying my mental health. Like … this is toxic,” Harry said. “So, I did what any husband and what any father would do is ... I need to get out of here.”

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The royal family announced last Friday that the Harry and Markle, who are currently expecting their second child, had informed Queen Elizabeth II that they will not be returning as working members of the royal family.

But the prince told Corden he will always seek to contribute to public service.

“We never walked away, and as far as I’m concerned whatever decisions are made on that side, I will never walk away. I will always be contributing,” Harry said. “But my life is public service, so wherever I am in the world, it’s going to be the same thing.”

Markle in particular was often treated harshly by media in the United Kingdom. A British judge ruled earlier this month that a tabloid invaded her privacy by printing portions of a letter she wrote to her father.

Earlier in the interview, Harry said he preferred the depiction of the House of Windsor in the hit Netflix show “The Crown,” which has often been criticized for its accuracy.

"They don't pretend to be news," he said. "It's fictional, but it's loosely based on the truth. Of course it's not strictly accurate, but it gives you a rough idea about what that lifestyle, what the pressures of putting duty and service above family and everything else, what can come from that."

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"I'm way more comfortable with 'The Crown' than I am seeing the stories written about my family or my wife or myself, because it's the difference between, that is obviously fiction, take it how you will, but this is being reported on as fact because you're supposedly news," he added. "I have a real issue with that."

The ongoing series has not yet caught up to the 21st century, but Harry suggested "Billions" star Damian Lewis might be a good fit to play him in future seasons. 

Corden floated the idea of Lewis playing Harry's brother, Prince William.

"It's not great casting, but it is casting," Harry replied.