The Richardson Family is a fictional family featured in the popular book series "The 100-Year-Old Man Who Climbed Out the Window and Disappeared" by Jonas Jonasson. They are known for their quirky adventures and humorous interactions, which often highlight the absurdities of life. In the story, the family members each have distinct personalities that contribute to the overall narrative. Their experiences reflect themes of family dynamics, humor, and the passage of time, making them relatable to readers of all ages.