Cullen is a very handsome young man who appears to be about two years old. He is loving and playful, and will chase the ball and return it every time! He loves, loves, LOVES his toys! However, Cullen does not like all other dogs, and will do best as an “only child,” or with a female dog from whom he could be separated when the humans are not home. Cullen will do well in an active home where he can get lots of playtime, or even daily jogs.