The estranged half-brother of Meghan Markle is on the attack and trying to block her happily-ever-after and released a letter begging Prince Harry to dump his bride-to-be.

Guess who’s not getting invited to family reunion.

Thomas Markle Jr.’s hand-written, back-biting note was shared with In Touch magazine and frames Markle as a “jaded, shallow, conceited woman” who is “obviously not the right woman” for the prince, Yahoo reports.

Meghan and Markle Jr share the same father but have different mothers.

Why not everyone in the family got an invite to Meghan Markle’s royal nuptials

Thomas hasn’t since his half-sister since 2011, so it does leave one to wonder where all the hate is coming from. He said in his rant that Meghan will make a joke of prince and the royal family.

“It’s not to [sic] late, Meghan Markle is obviously not the right woman for you,” Markle Jr. writes.

“It became very clear that this is the biggest mistake in royal wedding history. … I’m confused why you don’t see the real Meghan that the whole world now sees,” he continues. “Meghan’s attempt to get the part of a princess like a below C-average Hollywood actress is getting old.”

Somebody’s bitter…

Markle Jr went on to say that Meghan left their father high and dry, saying he’s broke because of her and she’s failed to pay him back.

Don’t most parents go broke helping their kids one way or another?

“My father will never recover financially from paying Meghan’s way.”

Markle Jr goes on to cry about not getting a wedding invited.

Markle Jr said he wants Prince Harry to “put an end to this fake fairytale wedding.”

 “Meghan is still my sister,” he writes. “She is family. So whatever happens is up to her; whether she wants to forget knowing me or the rest of her family, family comes first.”

“Also you would think that a proper royal wedding would bring a torn family closer together. But I guess we’re all distant family to Meg.”

Michelle Obama is adorable dancing alongside Jussie Smollett on College Signing Day

Markle Jr is the latest sibling to try to sidetrack Markle, but there’s another.

No matter, Markle and Prince Harry will wed May 19.