K-3PO is a protocol droid from the Star Wars universe, not an anime character. The designation "K-3PO" is presented as a model-style name rather than a personal human name, so it does not have a standard first and last name in the usual sense. K-3PO serves as a language and etiquette droid, typically functioning in support roles involving communication, translation, and diplomacy. As a droid character, K-3PO represents the practical, service-oriented side of the Star Wars setting.