Insiders say the prudish royal — whose wife has been battling with Meghan for months — also keeps his distance from her as he suspects she has a “questionable showbiz past” that will eventually come back to bite the royals.
He has been reading a series of rumors about the duchess online — which can’t be reprinted for legal reasons — and insiders say he will “never become friends” with his brother’s wife.
William — second in line to the throne — also fears Meghan, 37, is also trying to mold Harry in her own image and forced lifestyle choices on him including veganism and juice diets.
And he fears if Meghan and Harry, 34, ever split she’ll “do the dirty on the entire family” with the most explosive book and ever written.
Our palace insider added: “William is very straight-laced and edgy when it comes to Meghan. He sees her as an outsider who should never have been let into the inner circle, and firmly believes there is a lot more scandal to be played out about Meghan’s past life.”
The source added, “You only got to look at her car crash of a family to what kind of stock she is from and now she’s at the heart of the establishment.”
We have already revealed how Meghan pens a daily diary chronicling her life, which she stashes at home.
The Suits star also wrote an anonymous blog called “The Working Actress” when she was struggling to make it in showbiz — in which she confessed she had “magical boobs.”
Our source said: “Her daily notes are being referred to as “The Princess Diaries” and everyone fears she could ‘do a Diana’ on the royals by leaving Harry and shafting everyone with a best-seller that would earn one of the biggest publishing advances in history.”
Meghan has been around the royal family for more than two years. Royal protocol would prevent the newly-titled Duchess of Sussex from publishing a book while still a member of the household.
But any future split from Harry — whom she met in June 2016 — would prompt massive interest in her writings from publishing houses across the world. A separate source added: “Any book from a Duchess who was at the very center of the British Royal family would create a feeding frenzy.”
“The advance and the subsequent sales would be off the charts — that’s as long as it is a warts and all story. People would want all the gossip, the intrigue and rifts and rows — and Meghan would give it to them.”
Pregnant Meghan has already proved she’s got an eye for a story. For two years until 2012, her candid blog was a must-read for aspiring Hollywood actors. The Internet diary — penned in a confessional style — chronicled her triumphs and tribulations as she “hustled” in search of stardom. Other entries exposed the darker side of Tinseltown.
The tyrannical casting directors and “b–chy” rivals with whom she vied for roles were detailed in the blog, along with descriptions of hard-driving producers who treated the cast like “show ponies” and enlisted a doctor to inject them with vitamins so they stayed fit for work.
She also described how awkward it felt to act out a love scene with an actor whose passions had run away with him.
But she couldn’t risk putting her name to such a candid work.
She called herself “The Working Actress” and used a silhouette of an empty director’s chair as her logo, declining to identify herself even when mainstream news channels began clamoring to interview her.
Meghan called time on the diary after landing her big break in Suits and it was only last year it was revealed she was behind the online memoir.