The Human male Yerka Mig hailed from the planet Ralltiir. He joined the Galactic Empire, becoming a pilot and an Imperial officer. Also a bureaucrat with high security clearance, Mig was still serving the Empire when his homeworld was subjugated in 1 BBY. Mig resigned in protest and fled in remorse after Ralltiir's subjugation. With his high security clearance making him a fugitive from both Imperial Intelligence and the Imperial Security Bureau, Mig was forced to live as an outlaw on Tatooine.
While on Tatooine, Mig was known to frequent Chalmun's Spaceport Cantina in the planet's city of Mos Eisley. In 0 BBY, Mig was in the cantina when a former moisture farmer named Luke Skywalker and a Jedi Master named Obi-Wan Kenobi entered, searching for a pilot to take them and the droids C-3PO and R2-D2 to the planet Alderaan. Mig witnessed the smuggler Han Solo killing the bounty hunter Greedo before Solo left the cantina.
Yerka Mig first appeared in 1977's , the first film of the original trilogy. Uncredited in the film, he was portrayed by actor George Stock, listed as one of the "bureaucrats." Mig's scenes were filmed from April 12 to April 22, 1976 at Elstree Studios's stage 6. In 1995, Decipher, Inc. first named Yerka Mig in the Star Wars Customizable Card Game's Premiere Limited set.
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