Helen Noguchi is a 16-year-old girl who is saved by Tar-chan from a crocodile. She is half Japanese and half American. Initially she is a rather bold character who is searching for summer experience and plans to let Tar-chan take her virginity, but she later becomes friends with both him and Jane and teaches them how to manage a rice field. She was Tar-chan's biggest fan, but switched to Pedro after first seeing him. She stops appearing soon after New Jungle King Tar-chan began, but suddenly reappears for the final story as a full grown woman. In the anime her love interest is Pedro, but in the manga she marries Chikō.