Jeff is a character who appeared in seasons 4-6. He is portrayed by Austin Ball.
- His family came from the Philippines. Like Min (played by Pia Hamilton, but credited in all her appearances under Pia Manalo, her maiden name), her family came from the Phillippines.
- He lives with his mom, his dad, his older brother - Franco, his baby brother - Leo and his cat - Tiger. His mom, his dad, his older brother - Franco and his baby brother - Leo appeared in A Dino-Mite Movie. His cat - Tiger also appeared in A Different Kind of Mystery and A Dino-Mite Movie.