Kingdom Hearts
Geppetto is an elderly Italian woodcarver and the creator of Pinocchio. After he made a wish to have Pinocchio turned into a real boy, the Blue Fairy made his wish come true because he had given countless joy to many people. As a person, he is extremely kind and is very fascinated with Gummi blocks that could be used to travel to other worlds. When the Heartless came and destroyed his world, he somehow escaped and has been traveling to many worlds to find Pinocchio. Eventually, Geppetto and his wooden ship was swallowed by Monstro. He and Pinocchio is reunited again but Pinocchio soon wanders away further into Monstro. When Sora, Donald, and Goofy appears inside the whale as well Geppetto requests the help of asking them to bring back his son.
After the Monstro ordeal, he, like many other refugees, moves to Traverse Town with Pinocchio and opens up a shop in the First District after Leon helps him find a home. At this shop he designs blueprints for Gummi Ships and gives them to Sora for free, so that Sora can use them in battle against Maleficent and the Heartless.
After Sora defeats Ansem Geppetto is seen laughing with Pinocchio after he truly becomes a boy.
 Kingdom Hearts: Chain of Memories
A memory version of Geppetto appears when Sora visits Monstro during his quest in Castle Oblivion.
 Kingdom Hearts 3D: Dream Drop Distance
Geppetto is a rather old man with black eyebrows, thick, white hair, and a white mustache. His eyes are blue and he wears frame-less, rectangular spectacles. His nose is a bit large and his ears seem to be slightly pointed. He wears a light lilac-colored shirt with baggy sleeves under a red-violet vest. He wears an odd strap of some sort over his abdomen that is red violet with gold lining and decorated with gold crosses. Geppetto also wears black breeches (worn rather high), grey, knee-high socks, and brown shoes with gold buckles.
Geppetto is a kindly old man who is known by the Blue Fairy as someone who delights in bringing happiness and joy to others. When Pinocchio is animated, he immediately looks at the talking puppet as his own son and does anything he can to keep him safe. He also appears to have a lot of patience, shown that no matter what kind of mischief Pinocchio (unintentionally) gets up to, he does not lose his temper and appears content to use it as a lesson in right and wrong. When he is rescued by Sora, Geppetto returns the favour on a more grand scale by providing him with the Wishing Star Keyblade and various Gummi Ship blueprints in order to aid him against Maleficent.
Though Geppetto's origin dates back to 1881 in Carlo Collodi's novel, The Adventures of Pinocchio, this incarnation of the character made his debut appearance in the 1940 adaptation, Pinocchio. In the film, he carves Pinocchio out of pine and later makes a wish for the puppet to become a real boy for him to love like the son he never had. Due to his kind heart and love for bringing joy to children, the Blue Fairy grants his wish partially. Unfortunately, Geppetto leaves Pinocchio to go to school the next day, unaware that his conscience, Jiminy, has overslept, which leads to Pinocchio's various escapades. Eventually, Geppetto goes out to search for Pinocchio, and eventually learns that he is on the dreaded Pleasure Island. Geppetto ventures out to see to rescue Pinocchio from the cursed island, but he is intercepted and eaten by Monstro the whale. Fate reunites him with Pinocchio, and they work together to escape from Monstro by making him sneeze. A terrible chase ensues on the ocean surface, with Geppetto almost drowning due to his age, but Pinocchio manages to rescue his father, although at the cost of his own life. Emotionally broken, Geppetto takes his lifeless son back home and grieves for him, but the Blue Fairy appears once again and turns Pinocchio into a human boy, at the same time reviving him. Geppetto takes his son in his arms and celebrates the night away.