1. Comet, 'Full House'
Full House had the most adorable kids on TV, so it was only natural that the family pet was equally as cute. In real life, the dog who played Comet was found as a stray dog in the Sierra Nevada mountains and trained by his owner to play basketball, baseball, football, and other sports. Those sports skills paid off when the pup starred in Air Bud and its series of sequels.