Jimmy is a boy that Uncle Grandpa saved as seen in the episode In the Clouds. He is voiced by Grey DeLisle.
Jimmy is a young man who got his head stuck in the clouds, he has brown hair, he wears a yellow shirt with blue pants and red sneakers.
Jimmy is the type of kid who doses off in class and literally gets his head stuck in the clouds, he's also very smart to know interesting trivial facts like who is on the $100,000 or what year the Mayflower arrived at Plymouth Rock. He is also quick to become worried as he was scared to become the Cloud Wizard's chair for the next 7,000 years, and kept asking Uncle Grandpa for his help until he helped himself.
- The episode In the Clouds is a phrase known as "your head is stuck in the clouds", and in Jimmy's case, his head was literally stuck in the clouds.