Star Wars Series. Includes R2-D2, C-3P0, Darth Vader and Stormtrooper.

R2-series astromech droids, also known as R2 units, were a very popular series of astromech droids produced by Industrial Automaton. They were the most popular line of all the R-series.[14] They stood at around 1 meter in height, sported a distinctive domed head, and were programmed to perform a variety of tasks. The R2 series was a major success for Industrial Automaton, and many later models of astromech were based on the R2 series, though none had the same success. R2-D2 was a notable…