Big Brother VIP: Meghan's brother writes bombshell letter to her and Harry

Thomas Markle Jr famously wrote a letter to Prince Harry, asking him not to marry his half-sister Meghan in 2018, and it seems he's not done yet.

Channel Seven has shared a new teaser for Big Brother VIP, which sees the 55-year-on penning yet another letter.

"You know I'm famous for writing letters," Thomas tells Big Brother. "I'm gonna write a letter to Meghan."

He then begins writing the letter, saying, "Dear Meghan and Harry… The first thing I want to say to both of you…"

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However, we don't get to hear what he's got in store for the couple.

In the first promo for the show, Thomas said he'd "warned" Harry about Meghan before they were married.

"I'm Meghan Markle's brother, I'm the biggest brother of them all," he said. "I told Prince Harry, I think she's going to ruin your life. She's very shallow."

Unsurprisingly, Thomas and Meghan don't have a relationship so it's unlikely the Sussexes will respond.

Elsewhere, Caitlyn Jenner, another controversial star of the show, appears in the trailer, explaining what it is to be trans to Survivor's Luke Toki and Imogen Anthony.

"You've probably never met anybody who is trans?" Caitlyn asks Luke. "Let me see if I can try to explain. Are you right-handed or left-handed?"

"Right-handed," Luke tells her.

"Why are you guys right-handed and me left-handed?" she questions.

"Well, it's just the way we were born," the Survivor star responds, leading him and Imogen to have a moment of realisation.

We don't yet have the exact date for when Big Brother VIP will kick off, but it would be safe to assume it's in the coming weeks!

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