The aim of the dissertation is to identify different forms of reported speech and to highlight their importance in the construction of cartoons functioning as news comments in the press. The "cartoon" is a hybrid and humorous genre, which owes its rhetorical, thematic, discursive and formal characteristics to the caricature, the humorous drawing, the comic strip and the press comment. The different types of humor in the cartoon are closely connected to the editorial line of the periodical and are supposed to create a certain complicity between the cartoonist and his reader. The theoretical framework of the dissertation is based on Authier-Revuz's work. She identifies different types of reported speech by their specific semiotic, syntactic and semantic characteristics. Reported speech also falls within dialogism as Bakhtin defined it. Readers need their discursive, semantic, historic and collective memory as well as a certain proficiency in detecting implicit messages in order to understand some occurrences of reported speech. The theoretical framework is put into practice on a corpus of 150 cartoons published in the French daily newspaper Le Monde, in the French weekly review of international press Courrier international or exposed at the "Mémorial de Caen" from 2010 to 2014. One can conclude that firstly, indirect speech, direct speech, "modalisation en assertion seconde" and "modalisation autonymique d'emprunt" are found in the cartoons. Secondly, it can be difficult to attribute a type to an utterance of reported speech even when the analyst systematically checks all utterances for specific characteristics. Only the reader's former knowledge can help him choose one of the forms. Thirdly, the cartoonist uses reported speech to create a critical and sometimes humorous comment on events and their treatment in the media.