Who Is The Foster Father In 'Orbiting Jupiter'?

The foster father in 'orbiting jupiter' is Jack Maddox, a dairy farmer with a quiet strength that makes him one of the most grounded characters in the book. He’s not the type to grandstand or give long speeches, but his actions speak volumes. Jack takes in Joseph, a troubled boy with a violent past, not out of some savior complex but because he genuinely believes everyone deserves a chance. There’s this unshakable steadiness to him—the way he teaches Joseph to milk cows or patiently deals with his outbursts without ever raising his voice. It’s clear he sees the good in Joseph even when others only see the rumors.

What I love about Jack is how his parenting style reflects his life on the farm: practical, no-nonsense, but full of quiet care. He doesn’t coddle Joseph, but he doesn’t abandon him either. When Joseph becomes fixated on finding his daughter, Jupiter, Jack doesn’t dismiss it as a pipe dream. Instead, he listens, even helps in his own understated way. The scene where he drives Joseph to see Jupiter’s adoptive family? Heartbreaking and heartwarming at once. Jack’s the kind of man who shows love through deeds, not words—fixing a broken fence or standing up for Joseph when the school tries to label him as a lost cause. His relationship with his own son, the narrator, adds another layer. You see how he parents differently but equally, adapting to what each boy needs.

Jack’s not perfect, and that’s what makes him real. He struggles with how to handle Joseph’s trauma, and there are moments you can tell he’s out of his depth. But he never gives up. That’s why the ending hits so hard. Without spoiling it, Jack’s final act for Joseph is the ultimate proof of his love—a raw, selfless gesture that stays with you long after the last page. The book’s brilliance lies in how it paints foster parenthood as something quiet yet heroic, and Jack Maddox embodies that perfectly. He’s not just a background figure; he’s the quiet force that holds the story together.