R2-D2 is a loyal, self-sacrificing astromech droid from the Star Wars universe. Known for its beeping and whistling communication style and its spherical body design, R2-D2 is a skilled mechanic and technician with a wide array of tools stored in its body. Despite often being brusque and grumpy in nature, R2-D2 has a keen intellect and a capacity for creativity. R2-D2 served many Jedi and remained steadfastly by the side of Anakin Skywalker and later, Luke Skywalker. The droid has no known preferences or dislikes as it operates on a utility-based programming, though it shows remarkable bravery and resourcefulness in the face of danger. R2-D2 is often seen in the company of C-3PO and has a special bond with Princess Leia. Its nemeses include the Galactic Empire's stormtroopers and Darth Vader. Its primary role is as a mechanic, a combatant in battles, and a provider of intelligence by decoding messages, hacking into enemy systems, and conveying critical information.