In the interview, the Duchess of Sussex's father and half-sister are expected to share previously unseen family videos and "an extraordinary message."
Expressing his thoughts on the matter, Andrew Lownie told Express.co.uk that the bombshell interview will be "a plague" on both the Markle family and the Royal family, adding that "Charles will see this as another distraction, and it's unfortunate timing for him."
Lownie went on to say that the interview is likely to harm the reputation of both families, and "many will say it will help no one."
The interview trailer has sparked concerns, as Samantha Markle called the California-based royal couple "really unhealthy for each other," and even claimed that Meghan would still be working as a waitress if it weren't for their father.
