Inès is the young, recently married wife of a winery owner in the Champagne region. Unaccustomed to the grueling realities of agricultural life and the looming threat of war, she feels isolated and out of place in her new home. Desperate for connection and validation, her initial optimism often puts her at odds with those around her who are more attuned to the escalating conflict.

Olivia is a former management executive struggling to find purpose after the collapse of her twelve-year marriage. Having sacrificed her career for unsuccessful in vitro fertilization treatments, she feels entirely disconnected from her previous life. When she travels to France with her grandmother, she begins a journey to reconnect with her roots and rebuild her sense of self.

Céline is the hardworking and practical wife of the head winemaker at Maison Chauveau. Half-Catholic and half-Jewish, she carries a deep, pervasive fear for her extended family as German forces begin imposing restrictive laws. Unlike Inès, Céline grew up in the winemaking business and takes her responsibilities seriously, though her heritage places her in a uniquely vulnerable position during the occupation.

Michel is the owner of Maison Chauveau, a winery in the Champagne region. Older and more experienced than his young wife, he feels the heavy burden of keeping the vineyard operational and protecting his staff during the German occupation. His pragmatic approach to the invaders masks a growing desire to resist their control and protect his community.

Theo is the dedicated head winemaker at Maison Chauveau. Focused on the day-to-day survival of the winery, he prefers to keep his head down and avoid drawing the attention of the occupying forces. This cautious approach creates friction with his wife, who is deeply concerned about the broader implications of the war.

Julien is a French lawyer based in Reims with deep personal ties to the region's World War II history. He acts as a bridge between the past and the present, holding knowledge about the area's wartime secrets. As he helps Olivia investigate her family history, his compassionate nature contrasts sharply with the selfishness of her ex-husband.

Captain Richter is a German officer stationed in the Champagne region during the occupation. He is an intimidating figure who uses his authority to exploit the local population. He takes a threatening interest in Céline, using his knowledge of her Jewish heritage to intimidate her.

Edith is Inès's closest childhood friend, having taken the younger woman in after Inès's parents died. She and her husband own a popular brasserie in Reims, which becomes a frequent gathering place for German officers. Independent and brave, Edith uses her position to silently gather information for the resistance.

Antoine is a wealthy Frenchman who collaborates with the occupying German forces. He believes that the Nazi regime will ultimately benefit France's future and uses his resources to maintain a comfortable lifestyle. He offers false comfort to vulnerable individuals while harboring predatory motives.

Eric is Olivia's ex-husband and a former colleague at their management firm. Callous and self-centered, he ended their twelve-year marriage after having an affair with his administrative assistant, displaying little remorse for the devastation he caused.

Samuel is a Jewish refugee fleeing the escalating violence and deportations in France. An aspiring lawyer, he possesses a clear-eyed understanding of the true horrors of the work camps, shattering the illusions held by more sheltered citizens. He relies on the bravery of the winemaking community for survival.

Rachel is Samuel's sister, a Jewish refugee desperately fleeing the increasing restrictions and dangers of the German occupation. She hides in the underground wine caves of Maison Chauveau to evade capture by the authorities.

Herr Klaebisch is the official German inspector assigned to oversee champagne production in the region. Educated in winemaking, he is shrewd enough to notice when local workers attempt to undermine the authorities by mislabeling poor vintages.

Edouard is Edith's husband and the co-owner of a bustling brasserie in Reims. He supports his wife's efforts as they serve occupying German forces while silently gathering information for the local resistance.

Madame Gaudin is a local woman involved in the French resistance. She visits the winery to coordinate the movement of hidden weapons and provides private warnings to those she interacts with.

Madame Foucault is a neighbor to the Chauveau estate. She steps in to help the household during a difficult medical emergency, offering essential aid during a crisis.