R2-D2 (phonetically spelled Artoo-Detoo, and called "R2" or "Artoo" for short) is a character in the Star Wars universe. An astromech droid, R2-D2 is a major character throughout all six Star Wars films. Along with his droid companion C-3PO, he joins or supports Anakin Skywalker, Luke Skywalker, Princess Leia, and Obi-Wan Kenobi in various points in the saga. Along with Anakin Skywalker (Darth Vader), Obi-Wan Kenobi and C-3PO, he is one of only four characters to appear in all six Star Wars films.

R2-D2 was designed by John Stears and specially created by Australian firm Petric Engineering and English firm C&L Developments. Both the original props of R2-D2 and C-3PO used in filming are used as audio-animatronics in the queue area of Disneyland's Star Tours ride.

An Xbox 360 designed like R2-D2 was released in 2011. This shows his compelling cultural impact, but little is known about his personal life. Here we take a peak.