AP-5
AP-5, or Advanced Protocol Droid Number 5, was designed and built by the droid manufacturing company, Industrial Automaton. AP-5 was created to be a protocol and etiquette droid, programmed to assist humans in various social situations. However, due to a malfunction during its initial activation, AP-5 developed a glitch in its personality programming, causing it to become grumpy, pessimistic, and rigid.