The Summer I Turned Pretty Cast: Where Are They Now And Who Joined For The Final Season?

The Summer I Turned Pretty (TSITP) cast has captivated audiences for three seasons, culminating in the highly anticipated finale that premiered in mid-2025. The love triangle between Belly Conklin and the Fisher brothers, Conrad and Jeremiah, has dominated summer viewing, but as the final season wraps up and a new follow-up film is announced, fans are clamoring for the most up-to-date details on the actors who brought Jenny Han’s beloved characters to life. This article, updated for late 2025, provides a deep dive into the main cast's biographies, their newest projects, and the fresh faces that joined the final chapter at Cousins Beach. The Prime Video series, which premiered its third and final season in July 2025, has become a cultural phenomenon, turning its young leads into global stars overnight. With the main storyline reaching its conclusion, the careers of Lola Tung, Christopher Briney, and Gavin Casalegno are now shifting into high gear, with each actor taking on major new roles that prove their talent extends far beyond the sunny shores of the fictional beach town.

The Core Cast: Full Biography and Profile

The success of The Summer I Turned Pretty rests heavily on the chemistry and talent of its three main stars. Here is a complete profile rundown of the actors behind Belly, Conrad, and Jeremiah.

Lola Tung as Isabel ‘Belly’ Conklin

• Full Name: Lola Marie Tung
• Date of Birth: October 28, 2002
• Age (as of late 2025): 23
• Birthplace: New York, New York, USA
• Education: Graduated from LaGuardia High School of Music & Art and Performing Arts; attended Carnegie Mellon University’s drama program.
• Career Highlight: The Summer I Turned Pretty was her breakthrough professional role, landing the lead part of Belly Conklin shortly after finishing her first year of college.
• Recent News: Tung is confirmed to return for the announced TSITP follow-up movie, which will serve as a final epilogue to the series.

Christopher Briney as Conrad Fisher

• Full Name: Christopher Thomas Briney
• Date of Birth: March 24, 1998
• Age (as of late 2025): 27
• Birthplace: Danbury, Connecticut, USA
• Education: Attended Waterbury Arts Magnet School and graduated with a BFA in Acting from Pace University in 2020.
• Career Highlight: Prior to Conrad Fisher, Briney starred as Paul in the 2022 film Dalíland. His profile exploded with his role as the brooding, intellectual elder Fisher brother.
• Recent News: Briney garnered significant attention for his role as Aaron Samuels in the 2024 musical film adaptation of Mean Girls, demonstrating his versatility on the big screen.

Gavin Casalegno as Jeremiah Fisher

• Full Name: Gavin Perry Casalegno
• Date of Birth: September 2, 1999
• Age (as of late 2025): 26
• Birthplace: Dallas, Texas, USA
• Career Highlight: Casalegno began his career as a child model and actor, with early roles in films like Noah (2014). He became a fan favorite as the charming, golden retriever younger Fisher brother, Jeremiah.
• Recent News: Like his co-stars, Casalegno is confirmed to reprise his role for the highly anticipated TSITP movie, cementing his place in the Jenny Han universe.

New Faces and Returning Favorites for The Final Season (Season 3)

The third and final season of the Prime Video series, which covers the events of the third book, We'll Always Have Summer, required the introduction of several key new characters to navigate the final stages of Belly’s journey. While the central conflict remains the Belly-Conrad-Jeremiah love triangle, the expanded cast added fresh drama and tension.

In addition to the main cast—including Jackie Chung (Laurel Park), Sean Kaufman (Steven Conklin), and Rain Spencer (Taylor)—here are some of the notable new cast members who joined the show to shake up the dynamics at Cousins Beach and beyond:

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The returning cast members were essential in providing the emotional anchor for the series finale. Steven's relationship with Taylor, and Laurel's own journey with her grief and career, offered crucial subplots that provided topical authority beyond the central romance.

Key New Actors Introduced in Season 3

The final season brought in a handful of new talents, often playing characters from Belly’s college life or new acquaintances of the Fisher brothers. These additions were critical for showing the main characters moving into a new phase of their lives away from the idyllic summer setting.

• Isabella Briggs as Denise: A new character who interacts with the main group, potentially adding a new dimension to their social circle.
• Kristen Connolly as Lucinda Jewel: While details are kept under wraps, this role is expected to be a significant adult figure or a new love interest for one of the parents.
• Sofia Bryant as Anika: Known for her role in I Am Not Okay With This, Bryant’s casting was a major talking point, suggesting a pivotal new friend or rival for Belly.
• Lily Donoghue as Lacie Barone: Another fresh face, likely playing a college friend or acquaintance who helps propel the story forward outside of Susannah’s beach house.
• Zoe de Grand Maison as Agnes: Known for Orphan Black, de Grand Maison's inclusion hints at a more complex, dramatic subplot for the final episodes.

Beyond Cousins Beach: The Cast’s Shocking New Projects in 2025 and 2026

With the final season of The Summer I Turned Pretty now streaming on Amazon Prime Video, the cast is quickly leveraging their newfound fame into diverse and exciting projects. The shift from sun-drenched romance to psychological thrillers and major motion pictures is a clear sign of their rapidly evolving careers.

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Christopher Briney: From Beach Brooder to Broadway Star?

Christopher Briney's post-TSITP career is arguably the most high-profile so far. His role as Conrad Fisher established him as a leading man, but his turn as the charming, yet complex, Aaron Samuels in the 2024 film adaptation of the Broadway musical Mean Girls showcased his range to a wider, global audience.

Fans are eager to see what he tackles next, with industry buzz suggesting a move towards more dramatic roles or even a return to his theater roots, given his BFA in Acting. His involvement in the *Mean Girls* movie demonstrates a willingness to take on well-known, high-budget projects, separating him from the 'Team Conrad' persona.

Lola Tung: A Dive into Indie Horror and Thrillers

Lola Tung, who masterfully played the confused and heartfelt Belly Conklin, is making a significant and surprising pivot in her career direction. Instead of sticking to YA romance, Tung is embracing the indie film world, particularly in the horror and thriller genres.

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Her upcoming projects include:

• Forbidden Fruits: A horror film adapted from a play, signaling a darker, more intense role for the actress.
• The Young People: A new feature from acclaimed horror director Osgood Perkins. This role is a major shift from the light-hearted drama of TSITP and is set to redefine her image as a serious dramatic actress.

This strategic move allows Tung to showcase a different side of her acting talent, proving she can handle complex, emotionally demanding roles outside of the beloved Jenny Han universe.

The Future of the Fisher Brothers: The TSITP Movie

The most immediate and exciting future project for the core cast is the announced The Summer I Turned Pretty follow-up movie. While the third season concludes the events of the book trilogy, the film is expected to serve as an epilogue, offering fans a final, definitive look at Belly’s choice and the lives of the Fisher brothers years after the events of the series.

Both Christopher Briney and Gavin Casalegno have confirmed their return, emphasizing the strong bond the cast shares and their commitment to giving fans of Team Conrad and Team Jeremiah a satisfying conclusion. This movie is a clear signal that even as the actors move on to new projects, the world of Cousins Beach remains a central part of their professional identity for the foreseeable future.