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The Summer I Turned Pretty Season 3 cast, including Zoé de Grand Maison as Agnes and more

Pack your bags and get ready for another summer on Cousins Beach, because The Summer I Turned Pretty season 3 is here — and bringing a few new faces along for its final trip. (Warning: Some spoilers ahead for the first two episodes.)

In the final chapter of Belly’s story, we find our heroine once again caught between brothers Conrad and Jeremiah Fisher. Only now, the stakes are a lot higher; they’re all in their twenties, finishing up college and starting their careers, and decisions carry a lot more weight — especially when it comes to relationships. There’s a four-year time jump between seasons two and three, so those relationships have evolved and deepened since we left the crew at the end of season 2.

Season 3 kicked off on Prime Video on July 16 with two episodes, and episodes will drop every Wednesday until the finale on September 17. Ahead, refresh your knowledge of the main cast of The Summer I Turned Pretty season 3 and get to know the new characters we’ll be learning more about throughout the season. Spoilers ahead!

Lola Tung as Belly Conklin

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ERIKA DOSS

Isabel “Belly” Conklin is our main character, played by Lola Tung. She, her mom Laurel, and her brother Steven spend every summer at Cousins Beach in the beautiful home owned by Laurel’s best friend Susannah, who tragically dies of cancer in season 2.

When we left Belly in season 2, she was getting ready to go to college and start a new chapter with Jeremiah after ending things with Conrad. Season 3 opens with Belly and Jeremiah happy and in love at Finch, where Belly is finishing up her junior year and Jeremiah is about to graduate, but who knows how long that will last? In the premiere episode, Belly finds out that she may be able to study abroad in Paris and is grappling with the decision, as well as dealing with major turmoil with Jeremiah.

LP Staff Writers

Writers at Lord’s Press come from a range of professional backgrounds, including history, diplomacy, heraldry, and public administration. Many publish anonymously or under initials—a practice that reflects the publication’s long-standing emphasis on discretion and editorial objectivity. While they bring expertise in European nobility, protocol, and archival research, their role is not to opine, but to document. Their focus remains on accuracy, historical integrity, and the preservation of events and individuals whose significance might otherwise go unrecorded.

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