More: Walter is an advocate for canine cancer and heart disease, as a dog who struggles with both. He is also a registered therapy dog, who made monthly visits to a children’s hospital helping kids who like him face cancer or even rehabilitation. In Walter’s free time, he loves just being a total goofball, playing with his bajillion toys, standup paddling with his diver daddy, and being the neighborhood watch in the house blinds. Above all else, Walter is everyone’s best friend.