7 Shocking Updates On The Mamma Mia! Cast And The Status Of Mamma Mia 3 In 2025

The enduring magic of the *Mamma Mia!* films continues to captivate audiences worldwide, but what has the iconic cast been up to, and is *Mamma Mia 3* actually happening? As of December 2025, the answer to the latter is a resounding "yes" from the stars themselves, with key cast members confirming they are ready to return to the sun-drenched Greek island of Kalokairi. This article dives deep into the latest news, providing a fresh look at the original ensemble's recent career moves, the status of the highly anticipated third movie, and the new faces taking over the beloved roles on the global stage. The original *Mamma Mia!* cast has not slowed down, with major stars like Amanda Seyfried and Colin Firth announcing huge new projects for 2025, keeping them firmly in the spotlight. The franchise, powered by the timeless music of ABBA, remains one of the most successful musical film series in history, making any news about the cast or a threequel an immediate global event. Read on for the full breakdown of who’s coming back, who’s starring in the latest stage productions, and what the cast is doing right now.

The Original Cast: Where Are They Now and Their Latest 2025 Projects

The first two films, *Mamma Mia!* (2008) and *Mamma Mia! Here We Go Again* (2018), brought together an astonishing collection of Oscar winners and Hollywood royalty. Their commitment to a third film is the most talked-about topic in the entertainment world right now. Here is a complete look at the core cast and their most recent, up-to-date projects as of late 2025.

Meryl Streep as Donna Sheridan

• Role: The free-spirited hotelier and mother of Sophie.
• Latest News: Despite her character's fate in the sequel, Streep has been a vocal supporter of a threequel. Her return, even in a cameo or flashback, remains the biggest question mark for *Mamma Mia 3*.
• Recent Projects: Meryl Streep is set to lend her voice to an upcoming Pixar film titled *Hoppers*, which was announced at the 2024 D23 fan event. She was also the subject of a new documentary, *The Meryl Streep Project*, which premiered at the 50th Seoul International Film Festival in 2024.

Amanda Seyfried as Sophie Sheridan

• Role: Donna's daughter, whose wedding sets the entire plot in motion.
• Latest News: Seyfried has been the most active and public champion for *Mamma Mia 3*, confirming in September 2025 that the original cast has said a definitive "yes" to returning. She stated the film is in "active development" and that the creative team has a clear direction for the story.
• Recent Projects: Seyfried is slated to star in the 2025 Peacock crime drama series *Long Bright River*, a major television project where she plays a police officer. She is also starring in the musical movie *Ann Lee*, which is expected to be released in 2025.

Pierce Brosnan as Sam Carmichael

• Role: One of Sophie's three potential fathers; an architect.
• Latest News: The former James Bond actor, who plays Sam Carmichael, has also given updates on the third installment, indicating a high level of cast enthusiasm for the project.
• Recent Projects: Brosnan starred in the 2024 film *The Last Rifleman*, where he underwent a significant physical transformation for the role. He continues to be a prolific actor and producer, balancing various independent projects with major studio films.

Colin Firth as Harry Bright

• Role: One of Sophie's three potential fathers; a British banker.
• Latest News: Firth is expected to reprise his role as the endearingly awkward Harry Bright in *Mamma Mia 3*.
• Recent Projects: Fans are thrilled that Firth will be returning to another one of his most beloved roles: Mark Darcy, in the highly anticipated 2025 film *Bridget Jones: Mad About the Boy*. He also starred in the 2024 film *Someone's Daughter, Someone's Son*.

Christine Baranski as Tanya

• Role: One of Donna's best friends and former bandmates (The Dynamos); a wealthy socialite.
• Latest News: Baranski, who perfectly embodied the glamorous Tanya, has also hinted that a third movie is in the works, expressing her enthusiasm to reunite with the cast.
• Recent Projects: Baranski continues her acclaimed run as Agnes van Rhijn in the hit HBO series *The Gilded Age*, a role for which she recently received her 16th Emmy nomination. The new season is a major focus of her schedule.

Stellan Skarsgård as Bill Anderson

• Role: One of Sophie's three potential fathers; a Swedish sailor and travel writer.
• Latest News: Skarsgård is widely expected to return to complete the trio of potential dads.
• Recent Projects: Known for his roles in the Marvel Cinematic Universe and *Dune*, Skarsgård continues to take on diverse and challenging roles in both European and Hollywood productions.

Julie Walters as Rosie

• Role: One of Donna's best friends and former bandmates; a practical writer.
• Latest News: Julie Walters has previously suggested she is stepping back from acting, which makes her potential return for *Mamma Mia 3* uncertain, though fans remain hopeful for a cameo.

Dominic Cooper as Sky

• Role: Sophie's fiancé, later her husband.
• Latest Projects: Cooper has starred in various high-profile film and television roles, maintaining a busy schedule outside the ABBA-fueled franchise.

The Mamma Mia 3 Rumors: Everything We Know About the Threequel

The possibility of a third *Mamma Mia* film, which would presumably be titled *Mamma Mia! Here We Go Yet Again*, has been a constant source of speculation since the sequel's release. However, the updates from late 2025 are the most concrete yet, suggesting the project is finally moving forward.

The Cast is Ready to Go

The biggest hurdle for a film with such an ensemble cast is coordinating the schedules of numerous A-list actors. Amanda Seyfried, the lead actress, confirmed that the primary cast members are all on board. This collective willingness, which includes Pierce Brosnan and Christine Baranski, is a massive step toward production. The success of *Mamma Mia! Here We Go Again*, which grossed over $395 million worldwide, proved the audience appetite for more. The franchise director, Ol Parker, has also expressed ideas for a third movie, fueling the development process.

Plot Speculation and Potential New Faces

While specific plot details remain under wraps, the third film is expected to continue Sophie's story as she navigates her life and family on the fictional Greek island. The sequel, *Here We Go Again*, introduced a new generation of actors portraying the younger versions of Donna, Sam, Harry, and Bill, which opens the door for further exploration of their past or the introduction of new characters entirely.

One of the most exciting rumors circulating is the potential casting of new, younger Hollywood stars. Reports have suggested that actress Sydney Sweeney, known for her roles in *Euphoria* and *Anyone But You*, has been approached for a role. Adding a fresh face like Sweeney could introduce a new dynamic to the Sheridan family saga, perhaps as a half-sister or a new love interest, ensuring the franchise appeals to a new generation of musical lovers.

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Will Cher Return?

A major highlight of the second film was the surprise appearance of music icon Cher as Ruby Sheridan, Donna's mother and Sophie's grandmother. Her rendition of ABBA's "Fernando" was a showstopper. While her involvement in a third film has not been confirmed, the creative team would undoubtedly want the legendary singer to reprise her role, continuing the family's dramatic legacy.

The Global Stage Phenomenon: New Casts for 2025–2026

The *Mamma Mia!* story isn't confined to the big screen; the original stage musical continues to be a global powerhouse, with completely new casts announced for major productions in late 2025 and 2026. This demonstrates the incredible topical authority and longevity of the ABBA musical.

West End and UK Tour Updates

For fans in the UK, the excitement is high with the announcement of new principal casts for both the long-running West End production and a brand-new UK Tour. In London's West End, new principals joined the cast from October 2025, with Sara Poyzer stepping into the iconic role of Donna Sheridan. The new UK Tour, which kicks off in late 2025, also features a fresh lineup of talent, ensuring the infectious energy of "Dancing Queen" and "Waterloo" continues to thrill live audiences across the country.

Broadway's Return in 2025

The musical is also making a triumphant return to its original Broadway home, the Winter Garden Theatre, with performances resuming in August 2025. The Broadway cast features Christine Sherrill as Donna, Amy Weaver as Sophie, and a new ensemble ready to bring the Greek island fantasy to New York City. This revival highlights the fact that the *Mamma Mia!* universe is constantly evolving, with new actors taking on the beloved roles of Rosie, Tanya, Sky, and the three dads, Sam, Harry, and Bill.

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Whether you are a devoted fan of the original movie cast, eagerly awaiting news on *Mamma Mia 3*, or looking to catch the show live with a new cast, the world of *Mamma Mia!* is as vibrant and active as ever in late 2025. The confirmed enthusiasm from the original stars makes the prospect of a third film a near certainty, ensuring the ABBA songs will be stuck in our heads for many years to come.