Fearless and brave, Lassie will never hesitate to put her life on the line for her family, friends and even random people she may or may not have met before.

Like his wife, Park veterinarian Dr. Sarah Parker, Graham will often worry about the safety of his daughter Zoe before reassuring himself that Zoe is a smart kid who has forgotten more about exploring the beauty of the Park than any tourist has ever learned and as long as she has Lassie by her side, she can never come to any harm.

He later discovered, thanks to Lassie, Zoe and Harvey, that this was not the case and that his grandfather's sickness and death was purely down to something else, more than likely old age.

As the National Park's resident veterinarian, Sarah takes pride in her work, caring for any animal that may need her medical knowledge.

Mother of Harvey Smith and supposedly a member of staff at the National Park's visitor centre.

He is sometimes a minor antagonist, as some of his schemes to drum up tourists can often result in him doing some unscrupulous things, such as telling the driver of an old steam locomotive that he had personally inspected every inch of track on the line he was planning to send a trainload of tourists down to make sure it was safe when, in fact, he hadn't.

Proprietor of the National Park's general store, 'The Happy Camper', Mrs. Lee may look like any ordinary old lady, but she is far from it, as a couple of poachers learnt when she demonstrated her skills as a rodeo champion by hogtying them whilst they tried to capture a bear cub.

[7] In the United States, Lassie debuted on ViacomCBS's streaming service CBS All Access on January 17, 2020.