Meet Knox Jolie-Pitt! All About Angelina Jolie and Brad Pitt's Youngest Son — and the Special Role He Played in One of His Mom's Movies

Mar. 15, 2025

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Angelina JolieandBrad Pitt’s son,Knox, is no stranger to the red carpet.

In July 2008, the actors welcomed Knox and his twin sister,Vivienne, in Nice, France, joining their siblingsMaddox,Pax,ZaharaandShiloh.

“They’re pretty great people,” Jolie told PEOPLE in October 2021. “Because there’s so many of them, I think they’ve had a very significant effect on each other. It’s not like I’m the head of anything. I’m very honest with my kids. And I’m very human with my kids.”

TheMariaactress shared that she is “curious about all the different aspects of who they are” as she raises her children, emphasizing that her primary goal is to “be there to support and develop” their unique traits.

In addition to his film cameo as Kuku inKung Fu Panda 3alongside his mom and siblings, Knox, now 16, is carving out his own interests — one of which is learning sign language.

From his birth to his red carpet appearances, here’s everything to know about Angelina Jolie and Brad Pitt’s youngest son, Knox.

He and his twin sister were born in France

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Jolie and Pitt welcomed fraternal twins, Knox Léon and Vivienne Marcheline, on July 12, 2008, in Nice, France. Knox was born a minute before his sister, weighing 5.3 lbs.

Jolie called it “chaos” but added that they were “managing it and having a wonderful time,” with plenty of help from the twins’ older siblings, who helped to pick out the babies' clothes and “change and hold them.”

“It’s sweet – they are little mommies," Jolie said.

He was named after Pitt’s grandfather

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PEOPLE previously reported that Knox was named after Pitt’s grandfather, Hal Knox Hillhouse. Additionally, Pitt explained to PEOPLE andHello! Magazinethat Léon “is a classic French name.”

Knox’s twin sister’s name, however, carries a tribute to Jolie’s side of the family. Her middle name was chosen to honor Jolie’s mother,Marcheline Bertrand, who died from cancer just over a year before Vivienne’s birth.

Shortly after his birth, Pitt shared with PEOPLE which parent each of the twins took after.

“I dare to say that Viv is proving to resemble Angie in spirit, attitude and physicality. She is quite elegant like her mother,” he said. “And Knox, he’s a bit of me. He likes music like his dad.”

He has done voice acting

(L to R): Shiloh Jolie-Pitt, Angelina Jolie, Vivienne Marcheline Jolie-Pitt, Knox Léon Jolie-Pitt, Zahara Marley Jolie-Pitt and Pax Thien Jolie-Pitt seen at DreamWorks Animation and Twentieth Century Fox World Premiere of ‘Kung Fu Panda 3’ at the TCL Chinese Theater in Hollywood, Calif., on Jan. 16, 2016.Eric Charbonneau/Invision for Twentieth Century Fox/AP

Eric Charbonneau/Invision for Twentieth Century Fox/AP

“They don’t really want to be actors, but I didn’t want them to miss the opportunity. They came in, and they had a lot of fun with it,” she said.

When given the offer years later to make cameos inMaleficent: Mistress of Evilwith their mom, Knox and his siblings weren’t interested.

“None of my kids want to be actors,” Jolie told PEOPLE in October 2019. “[They’re into] business, humanitarian affairs, things like that.”

He’s joined his mom on red carpets

As a kid, Knox and his siblings frequently appeared on the red carpet with their mom, joining her for the premiere ofFirst They Killed My FatherandMaleficent: Mistress of Evil. But after attending theLondon premiere of Jolie’s Marvel filmEternalsin October 2021, Knox seemed to opt for a life away from the spotlight.

Three years later, Jolie toldE! Newsthat her kids are “especially shy” and “want to be private.”

However, supporting his mom as she received critical acclaim for her new filmMariain November 2024, Knox made a rare appearance in the spotlight when themother-son duo walked the red carpetat the Governor’s Awards in Los Angeles.

He was learning sign language when he was a child

(L to R): Angelina Jolie, Knox Jolie-Pitt, Zahara Jolie-Pitt, Vivienne Jolie-Pitt and Shiloh Jolie-Pitt attend the premiere of Disney’s ‘Dumbo’ at El Capitan Theatre in Los Angeles on March 11, 2019.Kevin Winter/Getty

Kevin Winter/Getty

During an appearance onBBC Radio 4’s Women’s Hourin 2016, Jolie opened up about enjoying the way her kids have developed unique personalities and interests — including alllearning different languages.

“I asked them what languages they wanted to learn," she said, revealing that Knox had chosen to study sign language.

As for his siblings, Jolie shared that “Shi is learning Khmai, which is a Cambodian language, Pax is focusing on Vietnamese, Mad has taken to German and Russian, Z is speaking French [and] Vivienne really wanted to learn Arabic.”

source: people.com