In Meurtre à la kermesse, the French Télévisions film adaptation of Agatha Christie's Hallowe'en Party, for the season 2 of the Les Petits Meurtres d'Agatha Christie TV series, Dr Petit is the husband of Geneviève Petit. He wishes to be elected mayor, and is thus a political rival of Catherine Dravignan. Dr Petit is portrayed by Philippe Hérrison.
Dr Petit accompanied Madame Ortega to Commissaire Laurence, since she was afraid that her French was not good enough.