|Debut||In the Loop|
|Voiced by||Peter New|
Harold Winston was dropped off at Littlest Pet Shop by his owner. He is a know it all who often doesn't get his facts right. At first Russell didn't like him very much however in the end, the two ended up being friends. He reveals that his facts are inaccurate because he mispeaks due to his vast knowledge. He has a habit taking a breath while sucking in his stomach simultaneously.
- "The finest bamboo is from Indiana."
- Adding an underwater elephant step is sure to improve your timing."