Henry's loyal, stray dog whose mischievous antics often lead to humorous situations and challenges, teaching Henry about responsibility and companionship as they become inseparable friends.

Henry's slightly older neighbor who often acts as an antagonist by flaunting his status but ultimately proves to be an ally, reflecting the complexities of childhood friendships.

One of Henry's neighbors and a friend who, along with her sister, represents the dynamic neighborhood friendships and contributes to Henry's social experiences.

Henry's caring and supportive parents who provide guidance and stability, helping him navigate the various challenges he encounters with love and understanding.