Le Fou du labo 4

Jean Lefebvre Eugène Ballanchon, scientific researcher, single Maria Latour Régine, Mr. Beauchard's spy Bernard Blier Mr. Beauchard, executive secretary linked to a gang Michel Serrault Mr. Granger, director of the scientific laboratory Pierre Tornade DST inspector Pierre Brasseur Father Ballanchon Margo Lion Mrs. Ballanchon, Eugène's mother Robert Dalban Merchant, spy in the laboratory Mario David Mario Henri Virlogeux Scholar André Chaumeau Baron Jean Franval DST inspector Paul Préboist Agent Alain Janey Fred