Will Arnett is in a new relationship after reportedly splitting from his long-time girlfriend Alessandra Brawn.
People reports the comedian, 55, quietly called it quits from long-time girlfriend Brawn late last year, and is now dating supermodel Carolyn Murphy, 51.
Arnett shares five-year-old son Denny with Brawn, and a source told the publication the former couple ‘remain committed co-parents’ to their boy.
A source told The Sun that Arnett and Brawn called it quits earlier this year.
Daily Mail has reached out to representatives for Arnett, Murphy, as well as Brawn via Instagram for comment but did not immediately hear back.
It’s not entirely clear when the alleged romance began, but the Arrested Development star and Murphy looked suspiciously like a couple during a visit to Sean Hayes’ West End show Good Night Oscar last month.

Will Arnett is now reportedly dating model Carolyn Murphy after splitting from his long-time girlfriend Alessandra Brawn following five years together
In a photo posted by Hayes, Arnett wrapped an arm around Murphy’s shoulders as she rested a hand upon his chest during a group photo.
‘Another recent surprise visit from one of the greats. Love you, Willie,’ Hayes captioned the post.
Murphy’s presence raised a few eyebrows, with one sensing they may be more than just friends: ‘Are Carolyn and Will an item?! If so….’ a fan commented with two fire emojis.
‘And with the beautiful Carolyn Murphy!’ another wrote of Murphy.
The model, who is also an environmental advocate, was previously married to Jake Schroeder from 1999 to 2002 and has daughter Dylan Blue, born 2000, with him.
Arnett began dating Brawn, who works in the fashion industry, in 2019, welcoming their son Denny the following year.
Although they have largely kept their relationship out of the public eye, they did pose together at the Vanity Fair Oscar Party in 2024.
Arnett used to be married to fellow sitcom star Amy Poehler, with whom he formed a beloved comedy power couple when they tied the knot in 2003.
They separated in 2012 and finalized their divorce in 2016, but retained an amicable equation as they bring up their sons Archie, 16, and Abel, 15.

Murphy is a supermodel and advocate for the environment

Arnett and Alessandra, pictured last year, reportedly split within the past year

The Lego Movie star was previously married to actress Amy Poehler; pictured 2012
Poehler and Arnett have refrained from publicly airing out the details of their breakup, though they have been candid about its emotional difficulties.
Arnett described the split as ‘brutal, brutal, brutal,’ sharing: ‘I was driving to the set one day and I pulled over to the side of the road and cried for an hour,’ to The Guardian.
In her memoir Yes, Please, published in 2014, Poehler wrote: ‘I don’t want to talk about my divorce because it is too sad and too personal.’
The Parks And Recreation star noted that she prefers to maintain a degree of privacy, explaining that ‘I also don’t like people knowing my s**t.’
A few weeks after their divorce was finalized, Will, then 48, was linked to interior designer Elizabeth Law, then 30, whom he was involved with until at least March 2019 when they were glimpsed passionately kissing out in Los Angeles.