Prince Harry's former friend will appear on Clarkson's Farm following on from Jeremy Clarkson's "sexist" column about Meghan Markle.
Hugh van Cutsem, one of Prince William and Harry's oldest friends, will appear on the Amazon Prime series, despite the Duke of Sussex publicly condemning the host last year.
Jeremy Clarkson, 64, was condemned by Prince Harry last year after he wrote a "sexist" column about the Duchess of Sussex in The Sun.
The TV host said he hated the Duchess of Sussex on "a cellular level" and added that he wanted to see Meghan paraded through the streets.
The column was subsequently deleted and Clarkson apologised after mass public outrage.
Harry's spokesman said at the time: "What remains to be addressed is his long-standing pattern of writing articles that spread hate rhetoric, dangerous conspiracy theories and misogyny."
The Duke of Sussex's former friend Hugh van Cutsem appeared in episode seven of Clarkson's Farm.
Described on the programme by Clarkson as simply "Hugh", he can be seen stalking deer with the host of the Amazon Prime programme.
After Clarkson's comments about Meghan, Hugh's appearance alongside him would have been unthinkable were they still pals.
Cutsem, 49, has known Harry and Prince William all their lives.
The Prince of Wales was senior usher at Hugh's wedding when he married Rose Astor in 2005, and is godfather to their daughter Grace.
Grace was a bridesmaid at William and Kate's wedding six years later.
Hugh and Rose reportedly invited Meghan and Harry to dinner at their house in West London.
They also attended the Duke and Duchess of Sussex's wedding in 2018.
After the Sussexes stepped back as senior members of the Royal Family in 2020, Rose Van Cutsem publicly mocked the announcement.
She joked on social media: "I am standing back as a senior member of my tax return because I'd rather drink coffee, see my friends, love my family and do yoga."
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Prince Harry confirmed his rift with the Van Cutsems in his 2023 memoir, Spare.
He revealed that Hugh's mother, Emilie, and one of her four sons contacted him to voice their fury after his 2021 interview with Oprah Winfrey.
The duke wrote: "Several close mates and beloved figures in my life, including one of Hugh and Emilie's sons, Emilie herself, and even Tiggy [Pettifer, his former nanny], had chastised me for Oprah.
"'How could you reveal such things? About your family?'"
