Dermot Mulroney Files for Divorce After 15 Years
Page Six reports that Dermot Mulroney, 61, has officially filed for divorce from singer-songwriter Prima Apollinaare (formerly Tharita Cesaroni) after nearly 15 years together. He cited irreconcilable differences in paperwork filed on June 21, 2025 in Los Angeles. No separation date was specified.
The couple shares two daughters: Mabel (17) and Sally (15). Mulroney is requesting joint legal and physical custody for both. He’s also asked the court to split legal expenses, bar the court from awarding spousal support to Apollinaare, but reserve the right to receive it himself.
According to court documents, all income and assets earned during the marriage will be treated as community property. Some assets will be defined as separate, but full details are pending as financial negotiations progress.
- A source told Entertainment Weekly the divorce was amicable, with both using mediators instead of lawyers, and that there are no disputes over money or custody.
- The sun may be setting on a romantic chapter, but the process appears to be respectful and low-conflict.
The pair first connected in 2008, marrying in December 2010. Their bond was rooted in music—Mulroney is a professional cellist, and Apollinaare follows a singer-songwriter path. They even appeared together on the game show We Are Family in 2024.
Mulroney’s upcoming divorce follows his earlier split from actress Catherine Keener, whom he divorced in 2007 after nearly 17 years of marriage. They have one son.
Why It Matters
- Celebrity divorces are high-profile, but this one seems handled with sophistication and discretion.
- Their continued shared custody plan suggests a desire for stability for their teens.
- The use of mediation indicates cooperation—setting a positive tone in a typically contentious arena.
Dermot Mulroney and Prima Apollinaare are separating after a long marriage marked by collaboration, music, and family. Their divorce filing leans toward a cooperative split, with shared custody, financial clarity, and a respectful approach.
