Miggs McKane was a scavenger of the human species. He operated on Jakku, a planet characterized by its desert landscape. At one point, he engaged in a negotiation lasting several hours with the scavenger Rey, which led to Rey acquiring hydrospanners in every one of the eight standard configurations, along with additional power cells. The residents of Niima Outpost asserted that McKane had successfully accessed the datacore of a wrecked Imperial Star Destroyer, uncovering a full order of battle.
Following this, he sold his discovery to someone from off-world and used the money he made to retire on Ogem, a planet situated near Jakku. By 34 ABY, Rey documented McKane's story in a survival guide she created, and included a drawing of him. The image portrayed McKane sporting facial hair, along with goggles and a hat.
The character Miggs McKane initially appeared in Rey's Survival Guide, a journal replica that was released on December 18, 2015. Jason Fry wrote the book, and Andrew Barthelmes provided the illustrations.