Josh Baskin is a fictional character from the 1988 film Big, portrayed by actor Tom Hanks. In the story, Josh is a 12-year-old boy who wishes to be "big" and magically transforms into an adult overnight. This sudden change leads him to navigate the complexities of adult life while retaining his childlike innocence. As an adult, Josh takes on a job at a toy company, where he impresses his colleagues with his creativity and enthusiasm. The film explores themes of childhood, adulthood, and the importance of staying true to oneself, making it a beloved classic in family cinema.