R2-D2 (called "R2" for short and phonetically spelled "Artoo-Detoo") is a robot character in the Star Wars universe. An astromech droid (referred to in the novel as a 'thermocapsulary dehousing assister'), R2-D2 is a major character in all six Star Wars films. Along with his protocol droid companion C-3PO, he joins or supports Anakin Skywalker, Luke Skywalker, Princess Leia, and Obi-Wan Kenobi in various points in the saga. R2-D2 was played by Kenny Baker. 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 originally designed and built by Tony Dyson, at the White Horse Toy Company Ltd using the body of an airconditioning unit from a Convair CV240 airliner being dismantled at the time. Some involvement was by John Stears, who worked on the prototypes with models specifically created by the Australian firm Petric Engineering building club and the English firm C&L Developments. Many scenes also made use of radio controlled and CGI versions of the character. Original props of R2-D2 and C-3PO are used as audio-animatronics in the queue area of Disneyland's Star Tours—The Adventures Continue attraction. R2-D2 & C-3PO appear in TransBOREmores, Real Veal, Total Recall Me Baby, and R2-PO.