Why Did Dermot Mulroney And Prima Apollinaare Divorce? Inside Their Custody Plans And Property Split

Dermot Mulroney and Prima Apollinaare have finally settled on the terms of their divorce. Here's everything we know about the cause and decisions related to their split.

By Saakshi Gupta Last Updated: Jan 17, 2026 | 22:57:50 IST

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Another long-running Hollywood marriage has officially come to an end after actor, Dermot Mulroney and his singer-songwriter wife, Prima Apollinaare, have finalised their divorce. The duo, once known for keeping their marital life out of the spotlight, surprised fans when they announced they were ending their 15-year marriage. The news was even more confusing, since they publicly performed just months before they filed for the split. Although the couple did not say much about their split, TMZ has now revealed that the former duo has now reached a full statement to close their chapter together. 

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What caused Dermot Mulroney and Prima Apollinaare's split?

According to court documents, Dermot Mulroney officially filed for divorce in the Los Angeles Superior Court in June 2024, after nearly 15 years of marriage. The filing listed the date of separation as 'TBD,' which sparked online speculation about the timeline of their split. However, the sources close to the pair told TMZ that the split was mutual and drama-free. 

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Subsequently, Dermot and Prime chose to work with mediators rather than lawyers, indicating they wanted to avoid public courtroom battles. As per insiders, there was no clash over money, property, or parenting responsibilities. Instead, the filing was just a formality for them to legally end their marriage after privately ending it months ago. Despite the separation, Dermot and Prima will reportedly remain friends.

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Inside Dermot Mulroney and Prima Apollinaare's custody agreement 

Early in 2026, Dermot Mulroney confirmed that he and Prima reached a full divorce settlement. So, he filed a declaration in the court stating that everything major issues in the divorce, including property division, child custody, support, and visitation rights, were resolved between them. They reportedly agreed on joint physical and legal custody of their two daughters, Mabel Ray and Sally June, a shared property agreement, child support, spousal support terms, and attorney fees. Although the exact financial details have not been revealed, the documents include spousal support, which requires the judge's signature to make it official.

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Dermot Mulroney and Prima Apollonarie's love story was based on music and privacy

Dermot Mulroney and Prima Apollinaare's relationship began in 2008, shortly after Dermot's divorce from Catherine Keener. They fell in love, and their romance moved quickly. Soon, the duo welcomed their first daughter, Mabel Ray, in 2008, followed by Sally June the next year. Later, they officially tied the knot in 2010 in a private ceremony and intentionally spent the next decade away from Hollywood's limelight. 

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Apart from privacy, music was a key part of their relationship. Dermot is a professional cellist who has performed on the background scores for major films, such as Mission: Impossible and Planet of the Apes. On the other hand, Prima is an accomplished singer-songwriter. They collaborated multiple times, and their home was reportedly filled with instruments. The pair made a rare appearance in February 2024 on a game show, We Are Family, where they formed together on Islands in the Stream. But eventually, the beautiful love story came to an end with their split in 2025.

 

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What do you think about the Dermot Mulroney and Prima Apollinaare's peaceful divorce settlement?

Next Read: Dreka And Kevin Gates' Bizarre Story: Dated As Teens, Alleged Cousins, Divorce Drama, Theft Claims

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