Buster often helps Forgetful Jones remember things, like brushing his teeth. To say that Buster is no ordinary horse is an understatement. Besides having the ability to speak, Buster is capable of brushing his owner's teeth with his hooves, singing, and driving a jeep.
After the death of Richard Hunt (Forgetful's performer), Buster continued to make solo performances. His most recent appearances occurred in Season 36; continuing with the season's focus on health, he appeared in a segment about brushing teeth. He also appeared briefly in Episode 4089, buying fruit from Alan.