Thomas Markle has criticised Meghan following the release of her Netflix cooking show, branding his daughter "inauthentic" and accusing her of using "pre-planned" facial expressions during the series.
The Duchess of Sussex's father revealed he has seen "a ton of clips" of the show, though he has not watched it in full.
Thomas Markle said: "I might sit down and watch it one day but I'm not sure."
He believes his daughter came across as inauthentic in the programme, which shows her cooking and mixing with friends and celebrity chefs.
Thomas Markle has criticised Meghan following the release of her Netflix cooking show, branding his daughter "inauthentic" and accusing her of using "pre-planned" facial expressions during the series.
Netflix
Meghan's father, who worked in Hollywood on shows like "Married With Children" and "General Hospital", was particularly critical of her on-camera presence.
"Unfortunately Meghan has never been authentic. She has to think about everything. She's not spontaneous," he told the Mail.
"Everything she says is pre-planned and rehearsed. It makes me laugh because I know all her looks and expressions."
He added: "I know when she's faking it for the cameras. She's trying so hard to be perfect that she tenses up every time the camera is on her."
Meghan's father, who worked in Hollywood on shows like "Married With Children" and "General Hospital", was particularly critical of her on-camera presence.
Netflix
Drawing on his industry experience, Mr Markle explained what makes cooking shows successful.
Thomas Markle said: "Cooking shows are horrendously boring unless the presenter has a passion for it.
"You have to be authentic to hold people's attention. When you are stuffing the turkey's a*** it has to look like you're having fun doing it.
"The best cooks are funny, they mess up, they are human. She just wants to be perfect. It's sad because she's trying so hard to stay in the limelight."
It was revealed on Friday that a second series of "With Love, Meghan" has already been filmed.
Netflix
It was revealed on Friday that a second series of "With Love, Meghan" has already been filmed.
The new episodes will air on Netflix this summer as part of the streaming giant's five-year deal with the Sussexes.
The current agreement is set to expire in October.
Some industry insiders in Hollywood believe Netflix will choose not to renew the lucrative deal when it ends later this year.