"J., George, and Harris" are characters from the humorous novella "Three Men in a Boat" written by Jerome K. Jerome. The story follows their misadventures during a boating trip along the River Thames in England. Each character has distinct traits: J. is the narrator, George is a practical man, and Harris is often portrayed as clumsy and comical. The trio's journey is filled with amusing incidents and reflections on life, friendship, and the challenges of outdoor activities. Their interactions highlight the quirks of human nature and the absurdities of everyday situations, making the novella a classic in comedic literature.