1. R2-D2 AND C-3PO
FROM Star Wars (1977), The Empire Strikes Back (1980), Return of the Jedi (1983), Star Wars: Episode I -- The Phantom Menace (1999), Star Wars: Episode II -- Attack of the Clones (2002), Star Wars: Episode III -- Revenge of the Sith (2005)
PLAYED BY Kenny Baker (R2-D2) and Anthony Daniels (C-3PO)
PROGRAMMING The Laurel & Hardy of the ''Star Wars'' saga, the droids provide comic relief, though they also frequently help Luke Skywalker (or, in the pre-Luke episodes, his father Anakin) out of tight jams.
SPECIAL FEATURES Fussbudget 3PO can speak 6 million languages; headstrong R2 can play holographic movies, help navigate X-wing fighter ships, and, as we discover in ''Attack of the Clones,'' fly.
MEMORABLE LINE (3PO to R2, as the latter is about to leave with Luke on a mission to destroy the Death Star in ''Star Wars'') ''Hang on tight, R2. You've got to come back. You wouldn't want my life to get boring, would you?''
WHY THEY PUSH OUR BUTTONS Scrappy, heroic R2 is the most lovable of all movie robots. Even though he has no face and a language of only beeps and whistles, he's wonderfully expressive. And you can't beat his odd-couple chemistry with 3PO.
EW MOVIE GRADES: A (Star Wars); A (The Empire Strikes Back); B+ (Return of the Jedi); B- (Phantom Menace); C+ (Attack of the Clones); B- (Revenge of the Sith)