R2-D2 (/ˌɑːr.tuːˈdiːtuː/) or Artoo-Detoo[1] is a fictional character in the Star Wars franchise created by George Lucas. He has appeared in ten of the eleven Star Wars films to date. At various points throughout the course of the films, R2, an astromech droid, is a friend to C-3PO, Padm? Amidala, Anakin Skywalker, Leia Organa, Luke Skywalker, Obi-Wan Kenobi, BB-8, Rey and D-O. R2-D2 and his companion C-3PO are the only characters to appear in every Star Wars film, with the exception of Solo: A Star Wars Story (2018).

English actor Kenny Baker played R2-D2 in all three original Star Wars films and received billing credit for the character in the prequel trilogy, where Baker's role was reduced as R2-D2 was portrayed mainly by radio controlled props and CGI models. In the sequel trilogy, Baker was credited as consultant for The Force Awakens; however, Jimmy Vee also co-performed the character in some scenes. Vee later took over the role beginning in The Last Jedi.[2] In The Rise of Skywalker, puppeteers Hassan Taj and Lee Towersey perform the role of R2-D2, replacing Jimmy Vee, who had played the role in the previous two films. His sounds and vocal effects were created by sound designer Ben Burtt.