Cast of The Summer I Turned Pretty: Full Character Guide

Introduction to the Main Cast

The core trio of The Summer I Turned Pretty centers on three characters whose dynamics drive the story across books and the TV adaptation. Belly Conklin returns to Cousins Beach most summers, navigating long-standing feelings for two half-brothers. Conrad Fisher is the intense, guarded older brother who resists change, while Jeremiah Fisher is the charming, protective younger brother who often mediates. Supporting figures such as Susannah Fisher, their mother, and Laurel, their father, shape the emotional backdrop of the series. This profile explains each primary role, how the actors portray them, and how the character arcs evolve across the source material and screen adaptation.

Main Characters and Their Roles

Belly Conklin

Belly is the viewpoint character and emotional anchor of the series. She is perceptive, introspective, and candid about her struggles with love and loyalty. Over the books, she matures from a girl who romanticizes summers into a woman confronting complex adulthood decisions. In the TV series, the role is portrayed by Madeline Wheeler, with her younger self played by Mckenna Grace in key flashbacks. The show emphasizes her candid inner monologue and evolving agency, while the books provide deeper access to her private doubts. Across both mediums, Belly’s arc explores identity, grief, and the tension between stability and desire.

Conrad Fisher

Conrad is the older Fisher brother, initially defined by guardedness and self-destructive tendencies stemming from family trauma. He is intense, sarcastic, and slow to trust, yet deeply loyal once connection breaks through his defenses. In the series, Hudson West plays Conrad as a child, while Gavin Casalegno portrays the teenage and young adult versions. The TV adaptation expands his emotional interior through visual storytelling and voiceover, aligning closely with the book version. His journey involves coping with loss, managing anger, and gradually allowing vulnerability within relationships.

Jeremiah Fisher

Jeremiah serves as the charismatic, empathetic mediator between Conrad and Belly. He balances playfulness with responsibility, often lightening tense moments while quietly shouldering family burdens. In the series, Jeremiah is played by Luca Padovan as a child and by Jaden Michael during his teenage years. On screen, his warmth and expressive physicality highlight his role as the social connector and emotional caretaker. In the books, his introspection appears through reflective narration, and his arc addresses self-worth, independence, and romantic compromise.

Supporting Characters and Their Impact

Susannah Fisher

Susannah is the matriarch who tries to hold the family together amid grief and change. Her warmth and openness contrast with the Fisher brothers’ reserve, and her new marriage introduces ongoing tension. On screen, she is portrayed by Rachel Blanchard, whose performance emphasizes her nurturing yet flawed decisions. In the books, her perspective adds nuance to household dynamics, revealing her own regrets and growth. Her choices affect each family member differently, particularly in how she balances past loyalty with present needs.

Laurel Conklin

Laurel is Belly’s father, a steadying presence in a household often ruled by uncertainty. He is patient, reflective, and quietly supportive, providing a counterbalance to the Fisher family intensity. In the series, John Gallagher Jr. embodies his thoughtful nature, while smaller on-screen moments in flashbacks capture his role as a grounding figure. The books elaborate on his internal conflicts regarding past mistakes and present responsibilities. His relationship with Belly evolves as they both confront generational patterns and redefine familial bonds.

Taylor & Other Cousins

Taylor and her circle introduce social dynamics beyond the core family, expanding the world of Cousins Beach. Taylor, often portrayed as popular and confident, interacts with Belly in ways that test friendship boundaries and highlight differing priorities. The supporting cousin group includes Grant, who challenges Conrad’s protective instincts, and others who contribute to the beach’s lively atmosphere. Their scenes collectively reinforce themes of peer pressure, class, and personal growth, while providing contrast to the Fisher household’s heavier emotional arcs.

Casting Overview and Actor Context

The series balances child and adult portrayals to capture time jumps and evolving perspectives. Younger actors establish foundational traits, while older interpretations add layers of realism and emotional nuance. Casting choices prioritize expressive presence and alignment with internal monologues, especially in the series, where voiceover work is integral. The table below summarizes primary actors and their character roles across mediums.

Character and Actor Reference

Narrative Function and Thematic Role

Together, these characters frame the series’ exploration of change and continuity. Belly’s perception ties the group’s shifting roles to the enduring question of where home truly lies. Conrad and Jeremiah represent diverging responses to shared history: one turns inward, the other outward. Susannah and Laurel model parental adaptation amid unresolved pain. The cousins introduce social comparison, highlighting how environment shapes expectations. The stories use these roles to examine how families renegotiate identity after loss, how friendships evolve under pressure, and how people learn to redefine love without erasing history.

Evolution Across Books and Series

Each installment extends the timeline, revealing how choices compound and relationships adapt. Early books focus on the repetition of summer patterns, while later entries confront adult consequences such as career uncertainty, shifting partnerships, and redefined obligations. The series gradually grants supporting figures fuller arcs, allowing their influence on the core trio to become more explicit. The TV adaptation compresses and reorders certain moments, but preserves the central tension between loyalty and self-discovery. As characters age, their goals and conflicts shift from immediate emotional impulses toward long-term commitments, reflecting how love, responsibility, and personal growth intersect over time.

Key Takeaways

• Belly Conklin anchors the series as the introspective narrator whose concept of home evolves across books and screen.
• Conrad Fisher embodies guarded intensity shaped by trauma, gradually learning openness through relationships.
• Jeremiah Fisher serves as the empathetic connector, balancing warmth with personal growth and independence.
• Supporting characters such as Susannah and Laurel provide generational context that deepens the core trio’s journeys.
• The interplay of actors and narrative perspectives shapes how themes of grief, loyalty, and adulthood are communicated.

Conclusion

The cast of The Summer I Turned Pretty forms an interconnected ensemble whose dynamics remain central to both page and screen. By aligning character interiority with actor interpretation, the series sustains emotional continuity while addressing adult complexities. Belly, Conrad, and Jeremiah illustrate varied responses to shared history, supported by a backdrop of family and friends who negotiate change in their own ways. Understanding each role, arc, and performance enhances appreciation for how the story endures as a long‑form exploration of love, identity, and the many meanings of home.