BB-2 is a small spherical astromech droid appearing in Star Wars: The Last Jedi. It serves aboard the Resistance command ship and is part of the droid support crew helping with ship functions, maintenance, and communications. Like other astromechs in the Star Wars universe, BB-2 contributes to the practical operations of the Resistance rather than acting as a major front-line character. Its presence adds to the lived-in, mechanical texture of the Resistance fleet and the broader world of the sequel trilogy.