During a recent interview, Pierce Brosnan discussed Sophie’s father mystery in Mamma Mia 3, igniting renewed curiosity among fans who have speculated about Sophie’s parentage since the film franchise began. Brosnan’s comments hint that the long-awaited answer may finally arrive in the highly-anticipated third installment, which remains unconfirmed by Universal Pictures.
Pierce Brosnan Hints at Unresolved Questions
For years, viewers of the Mamma Mia! Cinematic Universe have debated one central question: who is Sophie’s biological father? Sam Carmichael, portrayed by Pierce Brosnan, holds the secret, but Brosnan shows no sign of revealing it until the new movie is released. When speaking to The Hollywood Reporter while promoting his recent project, MobLand, Brosnan was asked directly about Sophie’s father and whether he might disclose the answer before a third film materializes.
“I think you’ll have to wait for the next movie. I think leave that one right there. I know who it is, but I don’t want to be a killjoy.”
—Pierce Brosnan
His evasive response intensified speculation, suggesting that the filmmakers are preserving this major revelation for the next chapter. Brosnan’s careful choice of words signals both excitement and frustration for fans, while also increasing anticipation for Universal Pictures to greenlight the project.
Momentum Grows for a Third Mamma Mia!
Although Mamma Mia 3 has not yet been officially confirmed, ongoing discussion among cast and producers—such as Amanda Seyfried, Christine Baranski, and Judy Craymer—points to increasing momentum. The original movies, which follow Donna (Meryl Streep) and Sophie (Amanda Seyfried) through life on a remote Greek island with the musical backdrop of ABBA, have long left the question of Sophie’s father unresolved.

Christine Baranski stated in an interview in August 2024 that she had spent time in London with producer Judy Craymer. Baranski confirmed intriguing developments, saying:
“was in London with [producer] Judy Craymer”
—Christine Baranski
“is planning Mamma Mia 3. She gave me the narrative plotline of how it’s going to happen. That’s all I can say!”
—Christine Baranski
Previous conversations with director Ol Parker and ongoing producer plans reveal that Craymer envisioned the story as a trilogy and has a clear plan for a third film. The creators have hinted the narrative might shift focus to new directions, perhaps exploring Sophie’s daughter or a prequel centered on a young Ruby (Cher). Other cast considerations have arisen as well, with fans expressing enthusiasm for Sabrina Carpenter’s involvement, following her breakout successes and advocacy from Amanda Seyfried and Judy Craymer.
Potential New Cast and Story Directions
The possibility of seeing fresh talent in the Mamma Mia universe has sparked significant interest. Sabrina Carpenter, known for her hit song “Espresso” and her acting career in television, is reportedly a strong contender for a featured role. Amanda Seyfried and Judy Craymer appear enthusiastic about what Carpenter could bring to the cast, suggesting that the third film could introduce a new generation of characters or delve into the history of iconic figures like Ruby, portrayed by Cher.
Meanwhile, Lily James received praise for her role as young Donna Sheridan, demonstrating both vocal range and emotional depth. These casting choices and possible new directions reflect a willingness to evolve the storyline while maintaining strong links to original characters like Sam Carmichael, Tanya, and Sophie herself.
Why the Father Mystery Matters to Fans
The question of Sophie’s father has defined much of the fan debate for the Mamma Mia franchise. With key figures like Pierce Brosnan, Colin Firth, and Stellan Skarsgård central to the plot, the reveal would provide dramatic closure as well as new narrative avenues. Producer Judy Craymer and writer Ol Parker have acknowledged the saga’s unresolved elements and recognized that resolving Sophie’s parentage could be the pivotal moment fans crave.
Excitement surrounding the third film and unresolved questions enhances the expectation for Universal Pictures to prioritize production. Cast members such as Meryl Streep and Christine Baranski, alongside new possible additions like Sabrina Carpenter, keep interest high and the discussion alive.
What Fans Can Expect Next
While Mamma Mia 3 has yet to receive an official go-ahead, the consistent comments from stars and creative leads imply ongoing negotiations and story development behind the scenes. Universal Pictures is likely paying close attention to the continuous buzz, fan engagement, and cast enthusiasm, which could influence the project’s future. As Pierce Brosnan revealed, the answer to Sophie’s father mystery will come with the next chapter, if and when it hits the screen.
The anticipation remains charged as audiences await confirmation of casting, storyline, and the long-promised resolution of the franchise’s central question. Until then, discussions about old favorites and potential new stars like Sabrina Carpenter keep the spirit of the Mamma Mia! Cinematic Universe alive for all who have waited for the truth about Sophie’s story.