Squirrel is a thoughtful, vigilant stray dog who survives in the world with a strong instinct for self-preservation. Born in a rural tool shed, she learns early lessons in caution and scavenging from her family. She possesses an emotional nature, observing humans and other animals to understand her surroundings. Her life is driven by an underlying desire for a safe place to belong.

Bone is Squirrel's bold and adventurous brother. He possesses a confident personality and acts as a brave leader during their early explorations. Unlike his cautious sister, he is eager to leave their initial shelter to discover the wider world and test his boundaries.

A wise, empathetic, and attentive stray dog who raises her puppies in a hidden rural shed. She teaches her offspring essential survival skills, from hunting and scavenging to avoiding dangerous predators and humans. Her primary focus is the safety and nourishment of her babies.

A small but fiercely brave stray dog who forms an instant bond with Squirrel. She is bold in her pursuit of food and unflinchingly loyal to her friends. Her fearless nature helps balance her companion's more cautious approach to the world.

An independent, elderly woman living in a countryside house. She is patient and tenderhearted, taking a gentle approach to interacting with a weary stray dog. Her home offers warmth, security, and a structured routine built on mutual respect.

A short-tempered suburban homeowner who attempts to take in stray puppies. He lacks patience for animal behavior and expects immediate obedience. His frustration over the puppies' untrained habits leads to a hostile environment in his household.

George's wife, who initially tries to rationalize the puppies' wild behavior. Though slightly more understanding than her husband, she lacks the time, patience, and knowledge required to properly care for feral dogs, ultimately contributing to a chaotic household.

The gentle son of the Merrion family. He keeps the puppies a secret from his parents, who dislike pets, and sneaks food out to them. His quiet, patient demeanor provides Squirrel with her first positive experience with humans.

A generous, empathetic veterinarian who prioritizes animal welfare over profit. She donates her time and utilizes charity organizations to provide necessary medical care for a stray dog in need.

A sweet and caring veterinary assistant. She works alongside Dr. Roth to help injured animals recover, offering steady affection and praise that builds trust with frightened strays.

A mother who adopts a stray dog as a summer pet for her children. She initially provides food and a place to sleep in the garage but soon becomes distracted and forgetful regarding her pet's basic needs.

A young boy who views a newly adopted dog as a temporary summer plaything. He initially enjoys playing fetch and singing to the dog but quickly loses interest.

Donald's sister, who enjoys the novelty of a new pet. She views animals through the lens of seasonal entertainment, reflecting her family's casual approach to pet ownership.

A wild fox raising her kits under a garden shed. She is bold and unafraid of humans, taking risks that worry the more cautious animals in the area.

A yellow barn cat who shares the shed with the stray dogs. He maintains a peaceful coexistence with the puppies, becoming one of Squirrel's early, quiet companions.

A vocal and critical friend of Susan. She acts as a skeptic regarding Susan's ability to care for a pet in her old age, voicing concerns that challenge Susan's independence.

A thorough and practical veterinarian who provides checkups, shots, and professional care for local pets.

An older farmer who, alongside his wife Jean, treats his livestock and barn animals with kindness. His well-maintained property offers a safe, quiet refuge for passing strays.

Hal's wife, who shares his philosophy of treating farm animals with respect and care, creating a peaceful environment on their property.