Star Wars EotE: A New Hope
Versed in over six billion languages, C3PO is here to serve! We're doomed.
C-3PO, sometimes spelled See-Threepio and often referred to as Threepio, is a bipedal, humanoid protocol droid designed to interact with organics, programmed primarily for etiquette and protocol. He was fluent in over six million forms of communication, and developed a fussy and worry-prone personality throughout his many years of operation.
Along with his counterpart, the astromech droid R2-D2, C-3PO constantly finds himself directly involved in pivotal moments of galactic history, no matter how miserable he finds it.
C-3PO is very dedicated to R2-D2 and any other friends he makes, as well as to any master that he served.