2-1B was a 2-1B surgical droid that was a member of the Alliance to Restore the Republic. Along with FX-7, 2-1B was stationed at Echo Base on Hoth and treated Luke Skywalker with bacta after he had been attacked by a wampa. 2-1B also treated Skywalker after his hand was amputated in a duel with Darth Vader on Bespin.
- The Adventures of Luke Skywalker, Jedi Knight
- Star Wars: Episode V The Empire Strikes Back (First appearance)
- Star Wars in 100 Scenes (First identified as 2-1B)
- Ultimate Star Wars
- Star Wars: Absolutely Everything You Need to Know
- Star Wars: Droid Factory
- Star Wars Character Encyclopedia: Updated and Expanded