|Life state||Ghost Dog|
|First appearance||Episode 29|
Stray Dog was the third dog added to the family, after Rabbit Dog and Menice Little Dog. KPopp would have gotten rid of him, but she would have felt guilty for letting the dog have no home again. During episode 33, during a party, Stray Dog died of old age. In episode 43, his ghost showed up, but KPopp didn't pay attention to it, because there were babies to be made.