WILL Arnett and his girlfriend Alessandra Brawn have split after six years together, The U.S. Sun can report.
The Arrested Development actor and Smartless podcast host, 55, and the fashion exec, 38, quietly broke up earlier this year, a source claimed.

Alessandra Brawn and Will Arnett attend the 2024 Vanity Fair Oscar Party on March 10, 2024 in Beverly Hills[/caption]
Alessandra and Will make their debut as a couple at the Creative Arts Emmy Awards on September 14, 2019 in Los Angeles[/caption]
Will and Alessandra looked cozy at the Louis Vuitton Hamptons Garden Party on July 20, 2024 in the Hamptons[/caption]
Will shared a sweet photo of son Denny in 2021, but the parents typically keep their son private[/caption]
They are now amicably co-parenting their son Denny, 5, the source added.
A rep for Will did not immediately respond to a request for comment.
Will and Alessandra have not been publicly pictured together since September 2024, and made their debut at the Creative Arts Emmy Awards in 2019.
Though neither has spoken out about their split, Will was spotted walking into Gigi Hadid‘s 30th birthday party in April of this year at Le Chalet in New York alongside influencer Leah McCarthy, 30.
It is unclear if Will and Leah were dates to the event, or just friends.
Will is a longtime pal of Gigi’s boyfriend Bradley Cooper.
In addition to his son with Alessandra, Will is dad to sons Archie, 16, and Abel, 15, with his ex-wife, comedian Amy Poehler.
Will and Amy filed for divorce in 2012 after nine years of marriage, and remain close, with Amy recently appearing on Will’s hit podcast with Sean Hayes and Jason Bateman.
HAPPY EXES
Will praised Amy’s parenting style on the April episode.
“I have to try really hard, but Amy you’re really good at this and you help me do this in concert with you, to remember to listen to what they’re saying and to not try to impose what I think, ‘You need this, you need that,’” Will said.
“To actually sit and listen to what your kid is trying to say. Encourage them to, as much as they can, to speak. I don’t come by it naturally because that’s not how I was raised.”
He also gushed over their healthy co-parenting relationship.
“I am really proud of it. Of course, things take a minute because everybody is sort of adjusting to what it is,” he continued.
“I’m also very proud of, certainly as parents, what we’ve been able to do. That has been really important to both of us. I’m really, really lucky to have her as a partner in this way.
“There aren’t many people I speak to more than I speak to her, which is weird, you know what I mean. But it’s great. I feel really lucky.
“She’s the person that I go like, ‘Hey, I’m thinking about doing this.’ Whether it’s life or work and I really seek her counsel because it’s important to me because I trust her. She’s awesome.”
Will is keeping busy after his breakup, playing a comic struggling with his personal life in Is This Thing On?, which was directed by Bradley.
The film hits theaters in October.
And his Smartless podcast remains among the most popular on Apple and Spotify.

Will was seen with Leah McCarthy outside Gigi Hadid’s birthday bash on April 25 in New York[/caption]
Will and then-wife Amy Poehler attended The Comedy Awards at Hammerstein Ballroom on April 28, 2012 in New York[/caption]
Jason Bateman, Sean Hayes, and Will spoke at the SiriusXM Presents SmartLess Live with special guest Howard Stern at The Stephen Talkhouse on August 17, 2024 in Amagansett, New York[/caption]
Will will next appear as a struggling comedian in Is This Thing On?[/caption]