Prince Harry says he wants his father and brother back in interview ...

Prince Harry says his troubled relationship with the royal family "never needed to be this way" and he wants to restore connection with his father, King Charles, and brother, Prince William, in an interview ahead of the release of his autobiography. 

"It never needed to be this way," he said in an excerpt from an interview with ITV released on Monday.

"They've shown absolutely no willingness to reconcile.

"I would like to get my father back; I would like to have my brother back."

Harry and Meghan, the Duke and Duchess of Sussex, have aired their grievances against the monarchy since stepping down as senior royals in 2020 and moving to California.

Harry, 38, has previously spoken about his estrangement from King Charles III, and Prince William.

In a separate interview with CBS News in the United States, Harry said Buckingham Palace had refused to publicly support him and his wife, while at the same time the institution was briefing against them.

"When we're being told for the last six years, 'We can't put a statement out to protect you,' but you do it for other members of the family, there comes a point when silence is betrayal," he told journalist Anderson Cooper.

Both interviews will be broadcast on January 8, two days before publication of Harry's autobiography Spare.

The comments come after the release of the six-part Harry & Meghan Netflix series last month. 

In the series Harry was scathing about how the royal press team worked, and spoke about how his relationship with William and the rest of the royal household broke down.

In one of the episodes Prince Harry said his father, King Charles, lied during a family meeting that his brother screamed at him while his grandmother, the late Queen Elizabeth, sat by and did nothing.

"It was terrifying to have my brother scream and shout at me, and my father say things that just simply weren't true, and my grandmother quietly sit there and sort of take it all in," he said.

"But you have to understand that from the family's perspective, especially hers, there are ways of doing things and her ultimate mission, goal/responsibility, is the institution."

He also spoke about how he witnessed his mother Princess Diana fall deeper into isolation. 

Harry said it was a look at, "the pain and suffering of women marrying into this institution".

Meghan described wanting to end her life as she struggled to cope with toxic press coverage.

In the series Harry said he "didn't deal with it particularly well".

"I dealt with it as institutional Harry as opposed to husband Harry," he said.

Both Buckingham Palace and Kensington Palace have indicated they would not be responding to the series or its contents.

Reuters / AP