The Ultimate Cast Guide: Who Returned And Who Was New For The Summer I Turned Pretty Season 3?
The Summer I Turned Pretty Season 3 delivered the long-awaited, emotional conclusion to Belly Conklin’s journey, adapting Jenny Han’s final novel, We’ll Always Have Summer. As of December 22, 2025, fans are still dissecting the drama, the heartbreaks, and the ultimate resolution of the central love triangle that defined the series. This final season brought back all the beloved core cast members, but it also introduced a handful of crucial new faces who were instrumental in pushing the narrative toward its final, inevitable destination.
The stakes were higher than ever as the story moved beyond Cousins Beach and into the college years, tackling themes of young adulthood, long-distance relationships, and the life-altering decision of marriage. The ensemble cast, both returning and new, was tasked with bringing this complex, high-emotion plot to life. Here is the definitive guide to every major actor and character who made the final season unforgettable.
The Returning Core Cast: Belly, the Fisher Brothers, and the Conklin-Park Family
The heart of The Summer I Turned Pretty has always been the bond between the Conklin and Fisher families, and Season 3 saw all the key players return to conclude their arcs. Their performances, particularly in the most challenging moments of the final book's adaptation, were a central talking point among critics and fans alike.
- Lola Tung as Isabel “Belly” Conklin: The protagonist whose life revolves around the Fisher brothers. Season 3 saw Belly navigate her engagement to Jeremiah, her college life, and the lingering, undeniable feelings for Conrad.
- Christopher Briney as Conrad Fisher: The brooding older Fisher brother. His storyline focused on his academic pursuits, his research program, and his final, desperate attempt to win Belly's heart before she married his brother.
- Gavin Casalegno as Jeremiah Fisher: The charming, easy-going younger Fisher brother. Jeremiah’s arc was dominated by his relationship with Belly, the decision to propose, and the challenges of maintaining a relationship under intense scrutiny and family pressure.
- Sean Kaufman as Steven Conklin: Belly’s older brother, who continued his relationship with Taylor and pursued his career aspirations at Breaker Capital, providing a grounding force for the main trio.
- Jackie Chung as Laurel Park: Belly and Steven’s mother. Laurel’s emotional journey, particularly her strong disapproval of Belly’s young marriage to Jeremiah, provided a powerful, mature counterpoint to the teenage drama.
- Alfredo Narciso as Cleveland Castillo: Laurel’s love interest and fellow author, whose stable presence offered support to Laurel during the family's turmoil.
- Minnie Mills as Shayla: Though a brief appearance, Shayla's return was noted, adding a layer of nostalgia to the early college scenes.
The New Faces: Expanding the World Beyond Cousins Beach
As the primary characters transitioned into college, the world of the series naturally expanded, requiring a fresh injection of new talent. These new cast members and their characters were essential in illustrating the lives of Belly, Conrad, and Jeremiah away from the familiar setting of Cousins Beach. They often acted as catalysts for the central trio's major decisions, particularly those related to the "Team Conrad vs. Team Jeremiah" debate.
Isabella Briggs as Denise Russo: A New Workplace Rivalry and Romantic Twist
One of the most talked-about new additions was Isabella Briggs as Denise Russo. Denise was introduced early in the season, working alongside Steven and Jeremiah at Adam Fisher's company, Breaker Capital.
In the original book, Denise served as Adam's assistant and was involved in helping plan the ill-fated wedding between Belly and Jeremiah. The show's adaptation gave her a more prominent, complex role. She was portrayed as a senior associate, often in a position of authority over Jeremiah and Steven.
The most shocking development for many fans was the unexpected, yet heavily implied, romantic tension and potential relationship that developed between Denise and Jeremiah, which some felt was "rushed" but necessary for the plot's direction. This new dynamic served to further complicate Jeremiah’s already tumultuous engagement to Belly.
Zoé de Grand'Maison as Agnes: The Catalyst for Conrad's Confession
The character of Agnes, played by Zoé de Grand'Maison, was a critical new entity in Conrad’s storyline. Agnes was a close friend of Conrad's from Finch University and a fellow student in his prestigious research program.
Agnes's role was pivotal: she was the person Conrad confided in, and it was through their conversations that he was finally able to articulate the depth of his feelings for Belly. She acted as a sounding board and, crucially, helped prompt Conrad to pursue Belly one last time before the wedding, making her a key player in the "Team Conrad" endgame.
Sofia Bryant as Anika and Tanner Zagarino as Redbird
The show also introduced other key college friends who fleshed out the characters’ social lives:
- Sofia Bryant as Anika: Anika was Belly’s much-anticipated college best friend. Her presence was important for showing Belly's life outside the Fisher drama and providing her with a confidante during the intense wedding preparations.
- Tanner Zagarino as Redbird: Redbird was introduced as Jeremiah’s frat brother and best friend. This character provided insight into Jeremiah’s college experience and the atmosphere surrounding his engagement.
The Final Chapter: Why the New Cast Was Essential
Season 3, which premiered on Prime Video on July 16, 2025, was always going to be the most challenging to adapt, given the polarizing nature of the book's ending. The new cast members were not simply background additions; they were narrative tools that helped bridge the gap between the idyllic summers of the past and the complicated realities of adult life.
The inclusion of characters like Denise and Agnes allowed the show to explore the main trio's lives separately, giving them identities beyond their connection to one another. Denise’s professional connection to Steven and Jeremiah at Breaker Capital highlighted the characters’ career paths, while Agnes and Anika provided the necessary emotional support systems at college.
Ultimately, the final season’s cast—the unwavering returning stars and the impactful new additions—managed to deliver a satisfying conclusion to the long-running question: Who does Belly choose? The dynamic performances, especially the new faces who challenged the status quo, ensured that The Summer I Turned Pretty went out with a dramatic, yet fitting, farewell. The final summer at Cousins Beach, as told by this full, talented ensemble, will be remembered by fans for years to come.
Detail Author:
- Name : Mr. Loyal Kuhlman Sr.
- Username : batz.gust
- Email : witting.samir@yahoo.com
- Birthdate : 1986-10-19
- Address : 24706 Kayli Squares Toyberg, UT 74517
- Phone : +1-620-203-3312
- Company : Schuppe-Jerde
- Job : Information Systems Manager
- Bio : Sequi iste sunt enim officiis dolor esse. Fugit magnam perferendis molestiae nisi qui id odit. Ex nesciunt perspiciatis et consequuntur doloribus. Qui dolor laudantium provident voluptatibus tempora.
Socials
instagram:
- url : https://instagram.com/hquigley
- username : hquigley
- bio : Qui eaque et consequuntur esse ut. Rerum autem repudiandae minima velit perspiciatis.
- followers : 329
- following : 1531
linkedin:
- url : https://linkedin.com/in/haven.quigley
- username : haven.quigley
- bio : Dignissimos similique magni unde.
- followers : 1832
- following : 1871
twitter:
- url : https://twitter.com/havenquigley
- username : havenquigley
- bio : Libero autem nobis tenetur. Officia est facere aliquam voluptas aut quia. Eveniet tempora odit corporis sunt. Minima cum qui distinctio voluptatem sapiente.
- followers : 4237
- following : 980
facebook:
- url : https://facebook.com/havenquigley
- username : havenquigley
- bio : Sit inventore quis incidunt ducimus.
- followers : 1132
- following : 1339
