Who Are The Main Characters In A Wish Upon A Star?

The main characters? Oh, let me gush about them! Chiara’s my favorite—imagine a girl who wears galaxy-print overalls and carries a notebook full of rocket sketches. She’s stubborn in the best way, like when she tries to build a model rocket from scrap metal. Luca’s the opposite: he talks to fireflies and leaves little 'wish rocks' painted like planets around town. Their bond reminds me of me and my little sister, always arguing but inseparable. Marco’s the wild card—charismatic, a bit secretive, and totally the type to show up with a trunk full of old star maps. The way he teaches Chiara about constellations (while dodging questions about his past) adds this layer of mystery. And Nonna Rosa! She’s the kind of grandma who’ll scold you for tracking mud inside, then sneak you extra tiramisu. The book’s charm is in how these personalities collide, especially during the meteor shower scene where everyone’s secrets kinda… shine brighter.

The heart of 'A Wish Upon a Star' revolves around two unforgettable siblings: Chiara and Luca. Chiara’s this fiery, determined girl with a dream bigger than her small town—she wants to become an astronaut, despite everyone telling her it’s impossible. Luca, her younger brother, is quieter but has this magical way of seeing the world; he believes in stardust and old legends. Their dynamic is so touching because Chiara’s practicality clashes with Luca’s whimsy, yet they’re each other’s biggest supporters. Then there’s Nonna Rosa, their grandmother, who’s basically the glue holding their family together. She’s always baking these almond cookies and dropping wisdom about the stars. The story really picks up when a mysterious traveler, Marco, arrives in town with a telescope and stories about constellations. He becomes this mentor figure for Chiara, but Luca’s convinced he’s hiding something. The way their lives intertwine under the night sky is just... chef’s kiss. It’s a story about family, dreams, and the kind of magic that exists if you dare to look up.

What I love is how the characters feel so real—Chiara’s frustration when she hits obstacles, Luca’s quiet bravery, even Marco’s enigmatic past. The book doesn’t just throw quirks at them; they grow, especially Chiara, who learns to balance logic with wonder. And the side characters! Like the grumpy librarian who secretly funds Chiara’s science fair entry, or the stray dog Luca adopts. Tiny details make the whole town feel alive. Honestly, I finished the last page and immediately wanted to stargaze.

Chiara’s the protagonist, no question—a 14-year-old with a NASA poster above her bed and a habit of correcting people’s science facts. Luca’s 8, obsessed with mythology, and draws these adorable (if inaccurate) pictures of Jupiter wearing sunglasses. Their parents aren’t around much (hinted at working overseas), so Nonna Rosa raises them in this cozy, creaky house with a rooftop perfect for stargazing. Enter Marco: mid-30s, leather jacket, always humming an old song about the moon. He’s got this tragic backstory involving a lost astronomy scholarship, which makes his mentorship of Chiara extra poignant. The librarian, Ms. D’Angelo, is low-key hilarious; she ‘accidentally’ leaves science books in Chiara’s path. There’s also Gianni, the bakery boy who teases Luca but helps him hide his ‘alien detection kit’ in the town square. The characters weave together like constellations—separate, but telling a bigger story when connected.

Chiara (aspiring astronaut, 14), Luca (her imaginative little brother, 8), their wise yet sassy grandmother Nonna Rosa, and Marco, the wandering astronomer who changes everything. The town’s quirky residents round out the cast, like the librarian who ‘hates noise’ but loans Chiara advanced astrophysics books. It’s the sibling relationship that steals the show—Luca’s unwavering belief in magic helps Chiara rediscover her own wonder.