The St. Bernard is a breed of very large working dog from the Italian and Swiss Alps, originally bred for rescue. The breed has become famous through tales of alpine rescues, as well as for its enormous size. The dogs never received any special training from the monks. Instead, younger dogs would learn how to perform search and rescue operations from older dogs.

Goofy is a funny animal cartoon character created in 1932 at Walt Disney Productions. Goofy is a tall, anthropomorphic dog, and typically wears a turtle neck and vest, with pants, shoes, white gloves, and a tall hat originally designed as a rumpled fedora. Goofy is a close friend of Mickey Mouse and Donald Duck and is one of Disney's most popular characters. He is normally characterized as extremely clumsy and having little intelligence, yet this interpretation isn't always definitive; occasionally Goofy is shown as intuitive and clever, albeit in his own unique, eccentric way

Snoopy is a fictional character in the long-running comic strip Peanuts, by Charles M. Schulz. He is Charlie Brown's pet dog. Snoopy began his life in the strip as a fairly conventional dog, but eventually evolved into perhaps the strip's most dynamic character - and among the most recognizable comic characters in the world. The original drawings of Snoopy were "greatly patterned" after Spike, one of Schulz's childhood dogs. In earlier strips it is not clear to whom Snoopy belongs. For instance, in the February 2, 1951, strip, Charlie Brown accuses Snoopy of following him, only to be told by Patty that Snoopy isn't following Charlie Brown, but merely lives in the same direction.