The Summer I Turned Pretty on Prime Video new cast additions – Today, Prime Video debuted an end-of-season trailer as Isabel “Belly” Conklin (Lola Tung) says “bonjour” to a new beginning in Paris.
In the series’ final three episodes, The Summer I Turned Pretty introduces a new group of characters who become key players in Belly’s Parisian journey.
Joining the series in recurring roles are Corinna Brown (Heartstopper), Fernando Cattori (With You in the Future, Untamed Royals), Isaline Prevost Radeff (Ceux Qui Travaillent, Haute Mer), and Jahz Armando (Gangs of London).
Corinna Brown /Photo Credit: Kim Hardy
Corinna Brown is a London-based television, film and stage actress. She played the role of “Tara Jones” in the Netflix series Heartstopper, an adaptation of Alice Oseman’s LGBTQ+ graphic novels, and can be seen in the new British television series In Flight. She made her television debut in the BBC Three TV-movie My Murder. Brown trained at East 15 Acting School in London, and her theater credits include Noughts & Crosses, Coppelia, Sleeping Beauty and Macbeth.
Fernando Cattori /Photo Credit: Renata Gerdes
In early 2025, Fernando Cattori premiered the feature film Contigo en el Futuro (With You in the Future) on Prime Video and is set to appear in the third season of The Summer I Turned Pretty, one of the platform’s most popular series. With these releases, Fernando strengthens his presence in the international market.
As an actor, he has co-starred in Príncipes Salvajes (Untamed Royals) by Beto Hinojosa for Netflix, Ceremonia by Dan Chávez (premiered at the Guadalajara International Film Festival), and La Liberación (The Liberation) by Alejandra Márquez Abella for Prime Video, moving with ease across genres and tones.
As a director, he was nominated for a Latin Grammy in 2024 for the musical short film Nacimos Llorando (We Were Born Crying) and created Recuérdame Viviendo (Remember Me Alive), the most-watched advertising campaign in Mexico that same year for Cerveza Victoria.
His work has been featured in Directors Library, OnePoint Four, Nowness, Vogue, GQ, and Young Directors Awards, among others. Trained in acting at NYFA, Yale Drama School, and CasaAzul during his teenage years, he also holds a degree in Communications from Universidad Iberoamericana. He is currently developing his first feature film.
Isaline Prevost Radeff / Photo Credit: India Lange
Isaline Prévost Radeff is a French-Swiss actress trained at La Manufacture, the School of Performing Arts in Lausanne. Winner of the Migros Cultural Percentage Dramatic Arts Study Award in 2019 and 2020, she quickly stood out on stage and screen.
She has acted in several films including Ceux Qui Travaillent and Des Araignées dans le Coeur, as well as on television in Haute Mer, a role that earned her the 2025 Swissperform Award for Best Rising Star. A polyglot fluent in French, English, and sign language, she continues her career across theater, film, and television.
Jahz Armando /Photo Credit: Justine Lechevalier
At its core, the international hit series is a coming-of-age story about first love, heartbreak, and the unforgettable magic of a perfect summer. Adapted from Jenny Han’s best-selling trilogy, The Summer I Turned Pretty has evolved into a global phenomenon since its debut. Season three has drawn 25M viewers globally through its first 7 days and is the fifth most-watched returning season on Prime Video.
Season three is helmed by showrunners Jenny Han and Sarah Kucserka, with both also serving as executive producers alongside Karen Rosenfelt, and Paul Lee, Hope Hartman, and Mads Hansen of wiip. The series is co-produced in partnership by Amazon MGM Studios and wiip.
About The Summer I Turned Pretty Season Three:
It’s the end of her junior year of college, and Belly’s looking forward to another summer in Cousins with her soulmate, Jeremiah. Her future seems set, until some core-shaking events bring her first love Conrad back into her life. Now on the brink of adulthood, Belly finds herself at a crossroads and must decide which brother has her heart. Summer will never be the same…
Based on the best-selling book trilogy from Jenny Han, The Summer I Turned Pretty is a multigenerational drama centered around a love triangle involving one girl and two brothers. It explores the complex bonds between mothers and their children, the strength of lasting female friendships, and the transformative journey of growing up. At its heart, it’s a coming-of-age tale about first love, first heartbreak, and the unforgettable magic of one perfect summer.
The Summer I Turned Pretty
Jenny Han is the No. 1 New York Times best-selling author of the To All the Boys I’ve Loved Before and The Summer I Turned Pretty series. Her books have been published in more than 30 languages. For television, she created two new series based on her books—Prime Video’s The Summer I Turned Pretty, which she executive produces and co-showruns, and the Netflix series XO, Kitty, a spinoff of the To All the Boys universe, which she also executive produces. For film, she executive produced all three films in Netflix’s global hit To All the Boys trilogy.
The Summer I Turned Pretty on Prime Video – now streaming
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The Summer I Turned Pretty on Prime Video new cast additions
