The former "Suits" actress recounted in the letter that she and Prince Harry repeatedly reached out to Markle before the wedding, that she personally helped him financially, and that she only learned of his reported heart attack through the tabloids.
In the handwritten note, Meghan is said to have accused Thomas Markle of "unwarranted pain" and "making the choice to not tell the truth". He had previously been hiding away in Mexico due to some debts, and he lied about having a medical issue when his daughter asked him to attend her wedding.
'There was no loving message in there, nothing asking about my health, nothing from her saying, "Let's get together and heal our differences", Mr Markle said about the contents of the letter.
"I pleaded with you to stop reading the tabloids. How much longer must I say it??" he countered. However, he denied Meghan Markle's claims that he hadn't tried to reach her and showed the publication texts to prove that he has tried to contact Meghan Markle and his son-in-law.
While Meghan also revealed her dismay at the way her father had allowed her half-sister Samantha to make continued attacks to the press.
Thomas Markle published the five-page letter from the Duchess of Sussex at the weekend after close pals of Meghan gave interviews to a U.S. magazine.
He said: 'I thought it would be an olive branch.
If you want to shop this Markle-loved brand with a discount, today is your (extremely) lucky day. "You watched me silently suffer at the hand of her vicious lies, I crumbled inside".
The 74-year-old showed the letter to the Mail on Sunday after he was left feeling "vilified" from the interview in People magazine.
Will Meghan Markle respond to her father leaking her private letter to the press? Last year, Queen Elizabeth II urged Markle and Prince Harry to address the Markle family debacle publicly, but now everyone is simply concerned for the duchess mental and physical well-being.
"It's heartbreaking, isn't it?" she told Inside Edition.
Now, Markle is "at her wit's end".
According to the reports, one source revealed that the duchess always did nice things for the crew on movie sets, bringing them gourmet burgers and going above and beyond the usual call of duty, something she reportedly still does with her crew, however, this time being the staff at Kensington Palace.