Looking for the name of the cartoon. It was said a long time ago that there was a little boy and a group of little people lived in the walls of his house.

In terms of cartoons, it is the American "Little One"

Content introduction: Nostalgic animation is some of the American classics. CCTV's popular work is broadcast at 6:30 pm on weekends. The work tells the story of a 13-year-old boy named Henry who accidentally discovered a tiny little person with pointed ears, turned-up front teeth and a thin tail in his suitcase while on vacation. "Little One" has a complete family: grandfather, father, mother and three children (21-year-old Dinji, 13-year-old Tom and 10-year-old Lucy). Dinky is a brash, thick-throated pilot. From then on, they lived in the ventilation passage of Henry's bedroom, and Henry's pet turtle became their good friend. The villains who oppose children in American cartoons, such as "Denver - The Last Dinosaur", are always adults. This film is no exception. The sinister doctor and his assistant always bring high-tech instruments in an attempt to capture these little guys. Relying on the intelligence of the little ones and Henry's meticulous protection, the adults' plots went bankrupt again and again.