John Cubbins is a fictional character created by author Ruth Stiles Gannett. He is the protagonist in the children's book series that includes "My Father's Dragon." Cubbins is known for his adventurous spirit and curiosity, which lead him to embark on a journey to rescue a baby dragon. In the story, John Cubbins encounters various creatures and challenges on his quest. His resourcefulness and bravery help him navigate through these obstacles, making him a relatable character for young readers. The series emphasizes themes of friendship, courage, and the importance of helping others.