as Emilie and René, they are Ernest and Colette's maternal grandparents. The children live with them until the German occupation of France ended. René was a dear friend of Robert's father, who was killed when the latter served with René in the French Army in World War I. They're 57 and 55 years old respectively. Mr. Herpin:(voiced by:Philippe Catoire) A veteran of World War I, he's the schoolteacher for most of the children in the series. He was also known by the alias "Sparrowhawk," as the leader of a local Resistance group. As the occupation progresses, he tasks the Robinsons with aiding the Resistance by distributing fliers and performing reconnaissance. Near the end of the invasion of Normandy, Mr. Herpin is injured and ultimately dies in a gunfight with German troops, buying the Robinsons time to escape. Mr. Tissier: Grangeville's crooked grocer, Paul's father. Although he’s not a Nazi sympathizer, he works with the corrupt German soldier, Hans by hoarding essential goods to sell them on the black market. Hans: A German soldier who abuses requisition to steal food to sell on the black market with Mr. Tissier. After Otto reports him about abusing requisition, he was sent to the Eastern Front in exchange for not being sent to military prison. He later steals Colette's pet pig Muddy and eats it and shoots the Morteaus' dog for barking at him. When he tried to take the Morteaus hostage and have them killed, he was shot and killed by Otto. Otto: A kind-hearted German soldier quartered at the Morteaus' household, he grows to love the children's mother, ultimately betraying the Nazis by saving the Morteau family and murdering Hans in the process. At the end of the occupation, he is arrested and almost executed by the Resistance, but was released due to intervention from the Robinsons and Robert. Thanks to Robert and Mr. Guibert, Otto was spared the prison camp and remained in Grangeville, working in the surrounding farms, and living there. Jeanne Morteau: Mother of the Morteau brothers. Over the course of the series, she falls in love with Otto. Pierre Morteau: (voiced by:Julien Crampon) The eldest son of Jeanne and brother of Marcel and Gaston. He joins the Resistance after learning he was about to be forced into compulsory work service. Jean-Baptiste: (voiced by:Benjamin Bollen) Grangeville's high-spirited postman and friend of Emilie and René. Colonel Von Krieger: The German