The Book Seller is a character that appears in the 1991 film, Beauty and the Beast. He is the owner of a small book shop/library in the village that Belle lived in. He is one of the few villagers who is genuinely nice to Belle.
During the film's opening musical number, Belle enters his workplace with the intention of returning a book that she had previously borrowed, she questions if there is anything new, to which the Book Seller denies, after choosing a book that she had already read twice, the Book Seller kindly gives the book to Belle, and watches as Belle departs.
In the live-action remake, his name is given as Père Robert, and he is the village chaplain.
He is first seen when Belle arrives to his chapel, to return a book that she had borrowed from him. Belle asks him if he has any new books, which he hasn't, but assures Belle that she could borrow one of his old ones. A few hours later, Père Robert helps Belle pick up her laundry, which some of the villagers has thrown on the street on the orders of the headmaster after discovering Belle teaching a young girl on reading.
He later appears at the tavern, when Gaston arrives and Maurice accuses Gaston of having tried to kill him. When Gaston throws Maurice into the back of Monsieur D'Arque's carriage, Pére Robert insists that Maurice is sick and needs to go to a hospital, not an asylum.
After Belle reveals the existence of the Beast, Père Robert watches in horror, as the villagers heads off to kill the Beast though it is likely he may have had a part in helping Belle and Maurice by setting the horses to the carriage loose to buy Belle and Maurice some time as he did not go with the mob (probably believing in Belle's claim that the Beast was not dangerous). Père Robert later attends the ball at the castle, together with the others, after the curse is broken.