In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Sentence1: Wally was a Golden Retriever born without eyes. Sentence2: Thinking he was useless, the breeder wanted to euthanize him. Sentence3: Fortunately, a rescue group saved Wally and found him a home. Sentence4: Wally's family helped him become a therapy dog for a nursing home. Sentence5: Far from useless, he proved that where there is love, there is value.
Wally, Breeder, Rescue group, Wally's family