7. Manx – This is an extremely playful breed, known for a high interaction level. Some liken its personality to a dog’s, as it enjoys burying and digging up toys [source: Cat Fanciers Association]. Many Manx cats are very attached to their owners or families. Once they form their bonds, they’re unlikely to transfer them to others. However, other Manx cats will show affection to anyone, including people outside their domestic families.