Life Is a Long Quiet River

A bright, tidy 12-year-old from the Groseille family living in squalid social housing. He is unusually calculating and ambitious for his age, quietly building a nest egg and manipulating connections between the two households. Maurice moves between the two families with ease, maintaining ties while keeping a secret plan. He orchestrates the exchange of information and people, revealing a complex blend of loyalty and self-interest.

A devout Catholic matriarch who keeps the Le Quesnoy household running and maintains appearances in the community. She is poised, practical, and deeply protective of her family, juggling church duties with domestic duties. When the families’ lives start to intertwine, she endures mounting stress and a nervous collapse as the secret arrangement unravels. She embodies the pressure of preserving propriety within a divided town.

Regional director of the electricity company, a principled and stern man who values order and appearance. He agrees to adopt Maurice for financial reasons but struggles with reconciling the truth with family loyalty. His authority and sense of duty are tested by the evolving dynamics between the two households. He represents the respectable side of a social divide that the film relentlessly examines.

The obstetrician who delivered the two babies twelve years earlier and whose life is upended by the nurse's confession and the swap. He hastily leaves town after the revelation, symbolizing how a single moment can alter many lives. The doctor’s role underscores the fragility of truth and the reach of a small deception. His actions set in motion the central consequences the families must face.

A member of the Le Quesnoy circle who interacts with the family amid the unfolding drama. She contributes to the social fabric surrounding the households, offering pragmatic support and perspective in a time of upheaval. Her presence helps illustrate how communities respond to upheaval and secrets. Her role anchors the social environment in which the families operate.

The local priest who embodies the moral framework of the town. He offers guidance and represents the community’s ethical concerns as the families navigate their intertwined lives. His perspective highlights the collision between religious virtue and human frailty. He serves as a voice of conscience within the film’s social landscape.

The matriarch of the Groseille family, living in financial hardship and hard-won resilience. She is protective and resourceful, doing what it takes to keep her family afloat in dire circumstances. Her perspective grounds the story in the everyday struggles of poverty and family loyalty. She embodies the human cost behind the social experiment at the heart of the film.

A trusted household presence who witnesses the shifting dynamics around the families. She offers a grounded, observational viewpoint on the events, acting as a quiet witness to the tensions and loyalties at play. Her role emphasizes the everyday human experience within the two households. She helps maintain the day-to-day life that hides the deeper secrets.

A 12-year-old girl raised in the Le Quesnoy household who initially embodies prejudice against the Groseille family. The revelation of her origins shatters her sense of self, leading to a nervous breakdown and a retreat into a seaside cottage. Her arc explores themes of identity, resentment, and the painful realization of belonging. She embodies the human cost of class divisions and secrets.

A younger member of the Groseille family whose presence in the duo of households adds another layer to the cross-family interaction. She participates in the family gatherings and the children's meetings by the river. Her role emphasizes the impact of the secret arrangement on the youngest generation. She represents innocence touched by adult schemes.

The eldest Le Quesnoy son, a boy on the cusp of adolescence who becomes entangled in the larger cross-family dynamics. He is curious and impulsive, drawn into the group’s reckless adventures. His actions illustrate how the divided world can blur boundaries between two families. He embodies youthful entitlement and the confusion of growing up in a conflicted social landscape.

One of the Le Quesnoy brothers, a younger member who navigates life within the opulent household. He observes, learns, and participates in the children’s interactions that cross into the Groseille world. His perspective helps show how the new, blended family environment influences adolescence and loyalties. He represents the quieter, developing side of the Le Quesnoy children.