Dermot Mulroney Divorce 2025: Actor Seeks Spousal Support and Joint Custody

After nearly 14 years of marriage, Dermot Mulroney, best known for his roles in "My Best Friend's Wedding" and "Chicago Fire," has filed for divorce from Prima Apollinaare, an Italian-Argentine musician and singer-songwriter. The 61-year-old actor submitted the paperwork in Los Angeles on June 21, citing irreconcilable differences, with the official date of separation still to be determined.

Joint Custody and Support Request

Mulroney’s filing requests joint legal and physical custody of their two daughters, Mabel Ray (17) and Sally June (15). He is also seeking spousal support from Apollinaare while asking the court to eliminate any possibility of her receiving support from him—a detail that stands out in the typically contentious world of celebrity divorces. The division of assets and debts will be addressed later, with Mulroney proposing that each party cover their legal fees.
 

An Amicable Split, No Drama

Sources close to the couple emphasize the amicable nature of the breakup. Both Mulroney and Apollinaare reportedly relied on mediators rather than attorneys, maintaining a friendship throughout the process. There are no disputes over finances or custody, and neither party is making demands—an unusual scenario in high-profile separations. The couple’s approach has been described as “pragmatic” and “mutually respectful,” with both prioritizing their daughters' well-being.

Public Silence, Private Lives

Neither Mulroney nor Apollinaare has issued public statements about the split. Apollinaare, who recently released the album "22" and several singles, continued to promote her music on social media even as news of the divorce broke. Mulroney, meanwhile, was seen wearing his wedding ring in a June 7 Instagram video, underscoring the couple’s low-key handling of their affairs.
 

From Creative Collaboration to Separate Paths

The pair, who married in December 2010 after meeting in 2008, have often shared their love of music, appearing together on the Fox game show "We Are Family" earlier this year, where they performed duets and spoke about their artistic connection. Mulroney, a professional cellist, and Apollinaare, whose musical roots run deep, brought their creative partnership to both their home and the stage.

A Legacy of Privacy and Respect

As Mulroney and Apollinaare move forward separately, their split stands out for its civility and lack of spectacle. With joint custody arrangements and no public mudslinging, the couple’s divorce reflects a shared commitment to family and mutual respect—a rarity in the Hollywood spotlight.