Sienna Miller‘s daughters have become her baby boy’s biggest cheerleaders.
The Madden star is running a victory lap after her son—who she welcomed in May with fiancé Oli Green—stole the hearts of kids Marlowe Sturridge, 14 (shared with ex Tom Sturridge), and her first child with the Crown alum, now 2 years old.
“He’s a boy, and he’s the first boy, so everybody worships him,” Miller exclusively told E! News’ Will Marfuggiat the Madden premiere Nov. 4, noting that gaining a brother has left her eldest “obsessed.”
And despite him being the newest addition, Miller said her infant can hang with the best of them. As she put it, “He’s incredibly chilled and gorgeous, and we’re so lucky.”
As such, though her little one’s big sisters aren’t clocking in for diaper duty, the American Sniper actress considers the infamous task part of the joys of parenting.
“With pleasure for me, it’s the honor of my life to change my son’s diaper,” she shared, adding, “There are enough of us that are willing.”
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Why Sienna Miller Regrets Letting Her Daughter Marlowe, 14, Walk a Red Carpet
And with her latest project—the football biopic about NFL legend John Madden—hitting Prime Video and select theatres Nov. 18, Miller noted how thrilled she is to have uninterrupted family time during the holiday season.
“Cozying up with little people at this time of year is heaven,” the Anatomy of a Scandal alum remarked. “I am not working after this, so I just get to be at home and snuggle up.”
Still, the 44-year-old named working alongside Kathryn Hahn, Nicolas Cage and Christian Bale as one of the highlights of her career.
“Honestly, the chemistry of the four of us,” she effused, “there was something in the four of us that felt magical and very, very real.”
Miller also praised director David O. Russell‘s improvisational approach on set, quipping, “You didn’t have a second to get bored on this. We just laughed and played.”
Read on for more stars who became working parents this year.
Instagram/Kaley Cuoco
“There are no words to describe this feeling once again. What a blessing,” Cuoco—who’s also mom to daughter Matilda—shared on instagram. “We are so grateful for the crazy wild up and down journey that brought us to our little Philo! Family officially complete.”
The two are already parents to son Charvarius Ward Jr. as well as daughter Amani Joy, who died in 2024 at 23 months.
Hinting at their daughter’s birth date, the couple wrote on Instagram, “We took Labor Day literally this year.”
And yes, the couple did make a reference to their identical names when choosing a moniker for their new daughter Lennon Taylor Lautner.
“Hello. I’m your mama,” she recalled telling her baby in a Vogue essay. “You … you look nothing like I thought you would, but exactly right. We’ve been waiting for you, do you know that? It was so nice of you to come.”
A birth certificate obtained by E! News later revealed that their child—a girl named Rose Bean Polansky—was born on June 9 in Los Angeles.
“Okay so…Charlotte and I would like to announce that [we] have indeed created a Human Bean!” Ono Lennon wrote. “His name is, Aurelius! Thank you!”
“The baby was born weighing 6 pounds 9 ounces,” a statement read on the royal family’s official Instagram page, adding that King Charles III and Queen Camilla “were delighted to be informed of the news.”
“With a 2-week early grand entrance, we’d like to welcome Vincent John into the world,” Compono wrote on Instagram Aug. 3. “What originally was a checkup due to cramping led to a medically necessary induction due to low fluid (Oligo). Love you to bunches, my little Vinny boy.”
“What a great blessing to be able to share with you the arrival of our precious MYLA,” the couple wrote in a joint statement. “You can’t imagine the happiness we have at home.”
“She was supposed to be born August 26, and she was born July 19,” Tobin revealed, explaining how her surrogate had to induce labor due to preeclampsia. “The doctor was like, ‘You know what? At this point, the baby is cooked pretty nicely.'”
“These last couple of weeks have been chaos, but in the best possible way,” Mariano wrote in an Instagram post. “Welcome back home Rock-Anthony Makoa Ventimiglia. Can’t wait for all of the adventures ahead with our family of 5!”
“Feels like heaven on earth,” she captioned a July 1 video of her cradling the newborn. “Baby is here and healthy.”
Yes, the Love Is Blind couple gave their son what they described as a “three-dimensional name represented in two-dimensional space” when he was born on June 29.
The reveal of the unconventional moniker—an homage to three J-named family members—comes two years after the birth of their daughter Galileo Terri Rayne Goytowski.
“Our daughter has been the greatest gift,” they told People in an interview published June 23, “and we are loving getting to know her better with each passing day.”
“He’s heading to summer camp at NICU for the first 2/3 months in this world, but mom and dad can’t wait to bring him home hopefully soon,” Heavey wrote on Instagram. “Dad was a nervous, terrified, sobbing mess but couldn’t ask for a better first Father’s Day.”
“Baby boy is here,” she captioned Instagram photos of herself holding the newborn in the hospital after her C-section, “and we are so grateful and so in love.”
“House is full,” Barash—who also shares son Joaquin with Devoto and daughter Harper with ex-wife Kirsten Storms—wrote on Instagram. “Hearts fuller.”
“The process of us having a child took four or five years,” Hoying told People in an interview published June 23. “It’s been a long time coming and just looking at her, I started crying because it was just such a beautiful thing that I feel really, really lucky.”
“There were tears and anxiety was through the roof,” she noted about her pregnancy in an Apple Music interview published May 29. “It’s what I wanted but I was just like, ‘Wait, this real life, like am I really ready?’ But ultimately, obviously had her and I’m glad I made the decision to do it.”
“Suddenly the world just got a whole lot brighter,” Madeleine posted to Instagram June 2. “06.01.2026 4lbs and 17.2 inches. We love you so much and are so proud to be your parents x.”
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