These guys made their first appearance in Attack of the Clones and were pretty much the only ones with a different helmet design (other than stripes of color) than the main clone troopers had in that movie. Makes sense since they were pilots not infantry. And only the yellow version was in the movie. The blue guy is just a fun paint app that as far as I know is unique to the figure. Which came from the Imperial Pilots Evolutions three-pack. Come to think of it, the yellow guy came from an Evolutions pack too, kind of- at least his helmet did. The figure is just a spare clone I had that I swapped the helmet out since the 3-pack had the helmet as an extra. Which is why he is carrying an infantry rifle and is all mud-spattered, which is something most gunship pilots probably don't ever deal with. So yeah- yellow guy is not even really a real Hasbro-released figure, and blue guy exists only because of Hasbro. A good pair! Only complaint- bluey's paint is quite sloppy. Oh well you can say they painted their own helmets. My hardhat at work has been extensively customized by me and it is not so pretty either.