The Quiet End: 5 Surprising Details About Will Arnett And Alessandra Brawn's Split And His New Romance

The celebrity world was recently surprised by the news that Will Arnett, the beloved voice of *BoJack Horseman* and co-host of the *SmartLess* podcast, quietly ended his long-term relationship with fashion executive Alessandra Brawn. The breakup, which occurred in late 2024, was confirmed publicly in September 2025, marking the end of a six-year partnership.

This news has sparked intense curiosity among fans, not only about the reasons for the separation but also about the current status of their family life. Despite the split, sources confirm the former couple remains highly committed to amicably co-parenting their young son, Alexander Denison Arnett, affectionately known as Denny.

Will Arnett and Alessandra Brawn: A Complete Profile

The relationship between the Canadian-American actor and the businesswoman was a significant chapter in Arnett’s life, coming after his highly publicized marriage to actress Amy Poehler. Their time together spanned six years, beginning in 2019 and including the birth of their son.

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Will Arnett Biography & Career Highlights

• Full Name: William Emerson Arnett
• Born: May 4, 1970 (Age 55 as of late 2025)
• Birthplace: Toronto, Ontario, Canada
• Key Roles: Gob Bluth in *Arrested Development*, the titular character in *BoJack Horseman*, Devon Banks in *30 Rock*, and host of *Lego Masters*.
• Podcast: Co-host of the massively popular comedy podcast *SmartLess* alongside friends Jason Bateman and Sean Hayes.
• Previous Marriages: Penelope Ann Miller (1994–1995) and Amy Poehler (2003–2016), with whom he shares two sons, Archie and Abel.
• Recognition: Inducted into Canada's Walk of Fame in 2019.

Alessandra Brawn Biography & Professional Background

• Full Name: Alessandra Brawn
• Occupation: Businesswoman and Fashion Executive
• Education: Studied at Emerson College.
• Career Highlights: Former CEO and co-owner of the clothing brand Chapel, which specialized in vintage band T-shirts. She also previously worked in Marketing and Public Relations for the luxury lingerie brand Kiki de Montparnasse.
• Relationship Timeline: Began dating Will Arnett in 2019.
• Child: Son, Alexander Denison "Denny" Arnett, born in May 2020.

The Amicable End: A Quiet Split in Late 2024

The separation of Will Arnett and Alessandra Brawn was not a dramatic, public event. Instead, the couple opted for a quiet, private parting, which is why the news only surfaced and was officially confirmed nearly a year later in September 2025.

The decision to split was reportedly made toward the end of 2024 after five years of dating and six years together. This private approach is consistent with how the couple handled their entire relationship, which was largely kept out of the intense media spotlight, a stark contrast to Arnett’s previous high-profile marriage.

Sources close to the couple have emphasized that the breakup was amicable. The primary focus for both Arnett and Brawn remains their five-year-old son, Denny. They are fully committed to a cooperative co-parenting arrangement to ensure their son's well-being and stability.

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This commitment to co-parenting is a familiar dynamic for Arnett, who also successfully co-parents his two older sons, Archie and Abel, with his ex-wife, Amy Poehler.

Will Arnett’s Surprising New Romance with Carolyn Murphy

Perhaps the most compelling detail to emerge alongside the split announcement is the news of Will Arnett’s new relationship. The *SmartLess* co-host has reportedly moved on and is now dating supermodel Carolyn Murphy.

The revelation that Arnett has entered a new romance suggests that the separation from Alessandra Brawn is a settled matter, allowing both parties to move forward with their lives. Carolyn Murphy is a highly successful American model known for her work with major fashion houses and her status as a former face of Estée Lauder. This new pairing marks a significant public step for Arnett following his private breakup.

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While details about the timeline of Arnett and Murphy’s burgeoning relationship are still emerging, the fact that their romance is now public knowledge underscores the finality of the split from Brawn. The actor, known for his roles in *The Lego Movie* and *Flaked*, appears to be embracing a new chapter in his personal life.

Alessandra Brawn’s Focus on Fashion and Business

Alessandra Brawn, unlike her former partner, is not a public figure in the entertainment industry. Her career has been firmly rooted in the world of high-end fashion and business. Her professional background provides a fascinating contrast to Arnett’s Hollywood life.

As the former CEO of Chapel, a brand focused on unique, high-quality vintage band T-shirts, Brawn demonstrated a keen business acumen and a strong sense of style. Her earlier work in marketing and PR at Kiki de Montparnasse further highlights her expertise in brand development and public relations within the luxury sector.

Following the split, Brawn is expected to continue focusing on her successful career as a businesswoman and her crucial role as a mother to Denny. Her ability to navigate the demanding worlds of fashion and motherhood, while maintaining a private life, is a testament to her professional strength and dedication.

The Future of Co-Parenting and New Beginnings

The story of Will Arnett and Alessandra Brawn's split is less about drama and more about a mature, private transition. The emphasis on "amicable co-parenting" speaks volumes about their commitment to their son, Denny.

For Will Arnett, the year 2025 has been one of significant personal change. Balancing his demanding schedule—which includes touring with his *SmartLess* co-hosts Jason Bateman and Sean Hayes—with his new relationship with Carolyn Murphy and his ongoing fatherly duties to Archie, Abel, and Denny, presents a complex new reality.

Ultimately, the quiet end of this six-year relationship allows both Will Arnett and Alessandra Brawn to pursue new paths while ensuring their son remains their shared priority. For fans of the *Arrested Development* star, this chapter closes with the hope that both individuals find happiness in their respective new beginnings.