The K-900 is a fictional robot dog featured in the animated television series K-9. It is designed to assist its owner, often a detective or a scientist, by providing companionship and support in various tasks. The character is known for its intelligence, loyalty, and ability to communicate with humans. In the series, the K-900 is equipped with advanced technology, including problem-solving skills and various gadgets. This makes it a valuable ally in solving mysteries and overcoming challenges. The character has become a popular icon in science fiction, representing the blend of technology and companionship.