The Casson Family is a fictional family created by British author Hilary McKay. They are featured in a series of children's books that explore the everyday lives and adventures of the family members. The stories often highlight themes of friendship, family dynamics, and the challenges of growing up. The family consists of parents Mr. and Mrs. Casson and their three children: Rose, Ben, and Emily. Each character has distinct personalities and interests, which contribute to the humorous and heartwarming situations they encounter. The series is well-loved for its relatable characters and engaging storytelling.