Mr. Sanderson is a member of the Sanderson family. He is the husband of Mrs. Sanderson and the father of Jenny Sanderson. He often buys new toys even though he is unemployed, which makes his wife crazy. He does care about his family, though, buying the main Chibi-Robo of the game for his daughter's birthday. However, it made his wife force him to sleep on the couch. His toothbrush was taken by the Chibi-Robo as a tool. He, however, is okay with this.