The Plural Actor Bernard Lahire The individual that the social sciences take as an object is most often studied in a particular context or from a single dimension. The actor is analysed as a student, worker, consumer, spouse, reader, sportsperson, voter etc. However, in societies where individuals live often through simultaneously and successively heterogeneous and sometimes contradictory social experiences, each individual inevitably carries a plurality of roles, ways of seeing, feeling and acting. The aim of this study is to consider the ways in which this plurality of worlds and experiences are incorporated into the being of each individual and to observe the individual's actions in a variety of settings. In addition to his sociological viewpoint, the author engages with psychology, history, anthropology and philosophy. His reflections lead him to embark on a program of psychological sociology to highlight the complexities of this plural view of the social. Bernard Lahire is Professor of Sociology at the Ecole Normale Superieure, Lyon.