Fu Dog is a main character in the series American Dragon: Jake Long. He is a 600-year-old Shar Pei and Jake's magical guardian. He met Jake's grandfather Lao Shi back during the 1970's era. Like many magical creatures, Fu is able to walk upright, and has no trouble using his front paws as hands despite the apparent absence of opposable thumbs. He's particularly skilled at potion-mixing. Despite his age, he frequently keeps up-to-date with current trends and events that will occasionally put him at odds with Lao Shi.
- Fu's granny is 1290 years old.