Alex is a practical and responsible teacher with a serious demeanor, characterized by his tall stature and admiration for stability. His relationship dynamics provide deep, slow-burning romantic tension in the story.

Rachel, Poppy's steadfast New York friend, is a glamorous yet supportive confidante who serves as a grounding presence despite her own social media fame. Her role highlights contrasts between city life and Poppy's small-town roots.

Sarah is the poised and literary woman from Alex’s past whose serious and logical nature contrasts with Poppy’s spontaneous spirit. She represents an ideal of stability for Alex, juxtaposed against his undeniable connection with Poppy.

Julian is Poppy’s initial carefree, non-committal boyfriend from Cincinnati, an aspiring artist whose travel-loving lifestyle mirrors her early restlessness.

Guillermo is a charming chef and Poppy’s first New York boyfriend, who appreciates her for her out-of-town charm but ultimately highlights the superficiality in their connection.

Trey, a photographer, is a fling for Poppy, with their shared love of travel masking deeper incompatibilities and underscoring her unresolved feelings for Alex.

Bernard is a chatty widower encountered by Poppy and Alex during a key trip, inadvertently playing a comedic role in their interactions.

Mr. Wright is Poppy's eccentric and supportive father from Linfield, whose quirky nature contrasts with Poppy’s efforts to present a more polished exterior.

Mrs. Wright, Poppy's sentimental and direct mother, supports Poppy her throughout her journey to self-acceptance with pragmatic love and advice.

Mr. Nilsen, Alex’s emotional and traditional father, embodies the challenges of single parenthood after losing his wife, influencing Alex’s sense of responsibility.

David, Alex's youngest brother, brings Alex and Poppy back into each other's lives through festive family celebrations, providing crucial support for their potential romance.

Betty is Alex’s vibrant maternal grandmother who shares a bond with Poppy and believes in the potential relationship between Alex and Poppy.

Swapna is Poppy’s demanding editor at Rest + Relaxation magazine, embodying the pressures of a high-powered career woman with a human touch.

Jason, Poppy’s first kiss during her school days, represents a painful chapter in her past marked by rumors and bullying, which she later confronts.