Uncle Claude
Hugo's uncle, who adopted and brought him to work on the clocks at the train station. He is also the reason that Hugo stopped attending school, but Hugo began school again after Georges Melies adopted him. Claude made Hugo sleep on the floor and yelled at him angrily when he made a mistake with the clocks. He smoked a lot and was an alcoholic, but unfortunately, he was found dead laying at the bottom of a lake. He was the clock timekeeper at the Paris train station, a task overtaken by Hugo after Claude's death.
Etienne
Isabelle's friend, who often sneaks her into the cinema due to her godparent's refusal. When he gave Hugo a coin to buy the book that he used for stealing Isabelle's key, he asks Hugo to guess what was behind his eye patch. Hugo guesses an eye, but Ettienne reveals that he lost his eye as a child when he was playing with fireworks. Hugo gives up on guessing, and so Etienne takes a coin from behind the eyepatch and gives him it to buy the book. The drawings in the book depicts a young man with smooth hair, a genuine smile and an eyepatch. He is polite, especially with children, but can also be mischievous, as shown when he is caught sneaking children into the cinema and when he was playing with fireworks. Etienne used to work at the cinema, but then he got fired and worked at the film academy library.
René Tabard
He was the author of The Invention of Dreams and Etienne's master at the film academy. Like most characters in the book, he enjoys the movies. A huge, probably the biggest, fan of director Georges Melies and was hired as assistant director and editor of his movies.
Jeanne Méliès
Known to Isabelle as Mama Jeanne, the wife of Georges Méliès was trusted by him to keep the heart-shaped key that began the automaton - until it got stolen by her goddaughter Isabelle. She, in her defense, said that she just thought it was pretty. Like Georges, she is in her elder years.
Madame Emile
A character who only appears twice in the book, the first time being when she found out that Hugo was stealing her and Monsieur Frick's croissant, and the second time being when she was there when Hugo was in the fugitive cell, and believed that he was telling the truth to the station inspector.
Station Inspector
Hugo has been avoiding this character ever since his uncle Claude disappeared. The first sign that the station inspector noticed of irregularity was when the clocks began to be too early and too late, even if just by seconds. That was because Hugo decided to work for Georges and didn't have time to wind the clocks. The second was when he sent a letter to Claude, asking for an interview with him, but there was no response. Finally, he decided to go see what was going on, only to have a long chase with Hugo Cabret. He is described as wearing a stylish blue uniform with a blue cap and smelling of vegetables. He is later revealed to also be an orphan and has a leg contraption to help him walk.
