BD units, also called BD Explorer Droids, were a model of explorer droid.
BD units were companion droids designed to assist with operations in remote and dangerous locations across the galaxy; programmed to be the ideal assistant to researchers or explorers operating alone in the field, they were designed to traverse all types of terrain. As a result of their manufacturer collapsing, BD units were a relatively rare sight in the galaxy. A type of similar looking and similarly named droid, the BDX droid, also existed but was much larger in scale.
One such droid was BD-1, who accompanied Jedi Master Eno Cordova, and later the Jedi Padawan Cal Kestis in 14 BBY. Another BD unit was TA-418, who assisted Doctor Eustacia Okka, former professor at the Shadow University institution, during the Imperial Era. BD-72 was another BD unit who was under the ownership of Peli Motto around 9 ABY.
The BD unit first appeared in the 2019 video game Star Wars Jedi: Fallen Order. It made its live action debut in "Chapter 5: Return of the Mandalorian," the fifth episode of the Disney+ television series The Book of Boba Fett, which was released on January 26, 2022.
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