Geraldo is a boy space guppy with a personality as small as a rock. He's not very energetic,goofy,and sometimes likes to be the center of attention. He often speaks in a serious voice. Whether playing store or leading our audience in a dance,Geraldo's style is sometimes over the top. He does come out of his shell,he's smart,friendly,likes to talk in funny voices,and make silly faces.
Geraldo has blue skin and green eyes. His green hair is worn like Nonny's. He wears a purple long-sleeved shirt and a black tail.