Meghan Markle’s brother Thomas Jr writes her and Prince Harry ANOTHER bombshell letter on Big Brother VIP

MEGHAN Markle's brother has written another letter to her and Prince Harry, a trailer for Big Brother VIP has revealed.

The second teaser, released today, shows Thomas Markle Jr. sitting in the diary room of the reality show announcing plans to write to his half-sister.

"You know I'm famous for writing letters," the 55-year-old Thomas says in the trailer sitting beside former Survivor contestant Luke Toki.

"I'm gonna write a letter to Meghan," he explains as he leans down onto a table in the diary room and puts pen to paper.

"Dear Meghan and Harry," he begins. "The first thing I want to say to both of you…"

His voiceover then trails off and a question appears on the screen that reads: "What's in the letter?"

In May 2018, he wrote an explosive open letter telling Meghan to call off the upcoming nuptials, blasting it as a "fake fairy tale".

However, he reportedly later backtracked on the letter, which he said was written in a "moment of madness".

Meanwhile, in the first promo for the show, Thomas claimed he had warned Prince Harry about his half-sister before they married.

"I'm Meghan Markle's brother, I'm the biggest brother of them all," he said in the introduction video.

He then went on to say: "I told Prince Harry, I think she's going to ruin your life. She's very shallow".

Thomas Jr, who shares a father with the Duchess, told Bild the last time he had seen her was in 2011, claiming his family believe she is now a "changed person".

When Meghan was born in 1981, Thomas Jr was living with his father, sister Samantha Grant, and step-mother Doria, Meghan’s mum.

He lives in Grant's Pass, Oregon, and works as a window fitter.

Thomas Jr was married for 11 years to Tracy Dooley, with whom he has two sons - Thomas and Tyler.

His ex-wife, Tracy, said he has alcohol issues.

Thomas was arrested in 2017 for allegedly holding a gun to a woman's head during a drunken argument.

He was later charged with menacing, pointing a firearm at another person and unlawful use of a weapon.

According to court documents, he pointed the gun at girlfriend Darlene Blount in an attempt to get her to leave.

He has since apologised and said he is "seeking help".

The upcoming series is a spin-off from the Australian version of the UK TV franchise.

It will star other famous faces such as Caitlyn Jenner, Neighbours actor Bernard Curry and Married At First Sight Australia's Jessika Power.