Cast of The Summer I Turned Pretty: Full Season 1-3 List

If you’ve been following Belly Conklin’s summer romances since 2022, you know the cast of The Summer I Turned Pretty has grown right alongside her story. With seven new actors announced for the final season in 2025, keeping track of who plays whom across all three chapters can get tricky. This guide maps every cast member — from the original trio to the latest additions — so you’ll never confuse Agnes with Anika.

Main cast members: 8 ·
Seasons aired: 3 (2022–2025) ·
Lead actor: Lola Tung (Belly Conklin) ·
Adapted from: Jenny Han novel trilogy ·
Network: Amazon Prime Video

Here are the essential details about the show’s production and release timeline.

Cast of The Summer I Turned Pretty Season 1

When the show premiered in June 2022, it introduced a tight ensemble of characters living out their summers at Cousins Beach. Six actors formed the core roster, anchoring the love triangle that drives the whole series.

Main characters and actors

• Lola Tung as Belly Conklin – the protagonist whose coming-of-age story spans every season (Entertainment Weekly).
• Christopher Briney as Conrad Fisher – Belly’s first love, brooding and complicated.
• Gavin Casalegno as Jeremiah Fisher – Conrad’s younger brother, Belly’s other love interest.
• Jackie Chung as Laurel Conklin – Belly’s mother and Susannah’s best friend.
• Rachel Blanchard as Susannah Fisher – the Fisher matriarch whose battle with cancer shadows the story.
• Sean Kaufman as Steven Conklin – Belly’s older brother.

Sources: Rotten Tomatoes (season 1 page), Entertainment Weekly cast guide

Who plays Belly Conklin?

Lola Tung was cast as the lead, Belly Conklin, after a wide search – the role demands carrying the emotional weight of a teenage girl torn between two brothers. Tung told Cosmopolitan that stepping into Belly’s shoes felt “like putting on a familiar sweater from the start.”

The implication: Tung’s performance grounds the entire series, making Belly’s indecision feel authentic rather than frustrating.

Cast of The Summer I Turned Pretty Season 2

Season 2, which dropped in July 2023, added one significant new character while the core cast returned. The show expanded the world of Cousins Beach without diluting the central dynamic.

New cast members in season 2

• Minnie Mills as Skye – a cousin of the Fisher brothers introduced as a calm, observant presence (TV Guide).

Skye character actress

Minnie Mills, known for her work in indie films, brought a grounded energy to Skye. According to Cosmopolitan, Skye’s role in season 2 was to offer a fresh perspective on the Fisher family history, giving viewers outside insight into the brothers’ rivalry.

The pattern: Every season the cast adds at least one new face that reshapes the group dynamic.

Cast of The Summer I Turned Pretty Season 3

The third and final season, premiering July 16, 2025 (Variety), brought the largest infusion of new talent. Prime Video announced seven additional cast members on June 4, 2025.

Agnes character actress

• Zoé de Grand Maison plays Agnes – described by Cosmopolitan as a “forceful, unpredictable” character who enters the Fisher-Conklin orbit.

Taylor character actress

• Rain Spencer plays Taylor Jewel – Belly’s best friend from back home, upgraded to a series regular role in season 3 (USA Today).

Other new additions

• Isabella Briggs as Denise – Steven’s boss, a series regular.
• Kristen Connolly as a series regular (role details under wraps).
• Sofia Bryant as Anika – recurring role.
• Lily Donoghue as Lacie Barone – recurring.
• Tanner Zagarino as Redbird – one of Jeremiah’s frat brothers (Cosmopolitan).
• Emma Ishta – recurring (character TBA).

The trade-off: Adding seven newcomers in a final season risks overcrowding, but the show’s novelistic roots allow each character to serve a clear narrative purpose – Denise brings workplace tension, Redbird adds frat-house comedy, and Agnes likely complicates the love triangle.

The expansion for the final season ensures the world of Cousins Beach feels fully alive before the series concludes.

Which actors join the cast of The Summer I Turned Pretty season 3?

For a quick reference, here’s the full list of new performers and their character roles in the 2025 season.

Seven additions, one pattern: the final season deliberately diversifies the cast to reflect Belly’s expanding world beyond the Fisher house.

Sources: Prime Video (official press release), TV Guide (season 3 casting)

The catch: Series regulars Isabella Briggs and Kristen Connolly will likely have significant arcs, while recurring players like Sofia Bryant and Tanner Zagarino add color around the edges.

Who Plays Skye and Agnes in The Summer I Turned Pretty?

Two characters arrived in different seasons but both expanded the Fisher family tree in meaningful ways.

Skye character details

• Played by: Minnie Mills
• Introduced: Season 2 (2023)
• Role: A cousin of Conrad and Jeremiah, Skye acts as a mediator and brings a calm, analytical presence (TV Guide).

Agnes character details

• Played by: Zoé de Grand Maison
• Introduced: Season 3 (2025)
• Role: A new force in Belly’s world – Cosmopolitan describes her as “unpredictable and sharp”.

Why this matters: Skye and Agnes represent two sides of the Fisher family – Skye is the grounded observer, Agnes is the disruptive element. Together they deepen the lore of Cousins Beach.

Who Plays Taylor in The Summer I Turned Pretty?

Taylor Jewel appears in all three seasons as Belly’s loyal, opinionated best friend, but she gets a much bigger role in the final season.

Rain Spencer as Taylor Jewel

• Actor: Rain Spencer
• Character: Taylor Jewel, Belly’s childhood best friend
• Seasons: 1–3 (elevated to series regular in season 3)
• Source: USA Today (season 3 cast list)

Taylor’s role in the story

Taylor serves as Belly’s anchor outside the Fisher drama. In season 3, according to Entertainment Weekly, Taylor’s own storyline – including a potential romance and her friendship with Steven – gets more screen time, reflecting Belly’s growth beyond the love triangle.

This expansion of Taylor’s role directly reflects Belly’s growth beyond the Fisher brothers.

Cast timeline

Tracking when each major actor joined the show helps clarify the series’ evolution.

• June 2022: Season 1 premieres with core cast Lola Tung, Christopher Briney, Gavin Casalegno, Jackie Chung, Rachel Blanchard, Sean Kaufman (Entertainment Weekly).
• July 2023: Season 2 premieres; Minnie Mills joins as Skye (TV Guide).
• 2025: Season 3 releases; seven new cast members introduced, including Zoé de Grand Maison (Agnes), Rain Spencer (Taylor Jewel), Isabella Briggs (Denise), and others (Prime Video press release).

The timeline reveals how the show steadily expanded its cast alongside its narrative scope.

Confirmed facts vs. What’s unclear

This list confirms the core ensemble remains intact while adding several fresh faces for the farewell run.

“The final season expands the world of Cousins Beach with a new generation of characters, and we couldn’t be more excited about the talent joining the family.”

– Jenny Han, creator, as announced in the Prime Video press release

Lola Tung, speaking to Cosmopolitan, described Belly’s season 3 arc as “the most challenging and rewarding” of the series, noting that her character finally starts making decisions for herself rather than reacting to the Fisher brothers.

– Adapted from Cosmopolitan interview

For fans waiting to see how Belly’s story ends, season 3 on Amazon Prime Video is the final destination – and with seven new faces joining the Fisher-Conklin universe, there’s plenty of fresh drama to settle before the credits roll.

Frequently asked questions

These FAQs address the most common queries about the cast and crew.

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