XR is a robot that sports Star Command's colors (purple, green, white) and logo on his chassis. He has a gold / bronze-colored head with yellow optics, encased purple circles and green eyelids. However, sometimes the optics appear green or red depending on his mood. He possesses short arms and legs which can stretch out to any length he wants. He also possesses continuous treads encased in green for feet and purple hands. His head is surrounded by a oval glass dome.
History
XR was created by the LGMs as the second robot Space Ranger after XL. On his first mission, he imitated Buzz repeatedly during their attempt to save the LGM homeworld from Zurg's forces. He was destroyed by Warp Darkmatter (now Agent Z) during this mission, and the LGMs attempted to rebuild him without the use of their Uni-Mind. This gave him a human-like personality, and he was temporarily reassigned as a janitor until he eventually joined Buzz's team after helping to save the galaxy from Zurg's mind control machine.
Personality
Originally XR was obedient, imitating all Buzz's actions to learn how to act as a ranger. However after his reprogramming he developed a huge ego and sarcastic humour. This was a result of the LGR's reparing him while they were not connected by the uni-mind, even the LGR's themselves are puzzled by this. They initally tell him he's amazing after his first mission which he loves, he is less happy when they add he has many flaws almost like a human
Despite having great intelligence typical of any robot, XR's personality is as childish as Booster's via the fact that he tends to crack jokes at the worst times in most episodes. He also gets cocky after a single success, yet fearful after he can't repeat the same success twice.
Despite being created by the LGMs, XR believes that Commander Nebula is his father on account of his signature (and initials) on the paperwork during his project stage is what allowed his creators to give him life, and tends to point that out much to the commander's annoyance, and the confusion/disturbance of his teammates, especially Buzz Lightyear himself.
He possesses deep hatred and anger against the Vulturans, due to their scavenging behavior upon spaceships, space stations and, most disturbingly, robots.
Abilities
As a robot, XR has many abilities, including flight with a jetpack. He can pull out multiple guns from his back and hands, and also has one big gun in his chest. His chest compartment can hold a wide variety of items, some of them nonsensical. He has many other features such as a built-in stove, a jamming signal, and others. He has the ability to be rebuilt after any damage he receives, either by the LGMs that built him or via self-repair systems, depending on severity.
(Lying) "One thing I can't stand is gambling! I'll lay you seven to one odds there's no more poker after tonight." (poker chips fall out of his compartments).
"As you know, normally I'm not one to panic, primarily because Buzz always comes to the rescue. But we're currently fighting Buzz, so who's coming to the rescue?"
"Yeah, but, it's dangerous out there. One false move and someone could be blown to bits - maybe me!"
Trivia
XR was mentioned in a 2010 "Free Comic Book Day" Toy Story comic, "The Return of Buzz Lightyear: Part One".
According to XR, he failed to pass a certification test for the laser drill aboard Team Lightyear's ship due to spelling errors and neatness in "Sunquake", and in "Gravitina", Buzz is annoyed that XR sent Gravitina the love letter without letting him proofread it. This may prove that XR is not the best at spelling, especially as in "The Return of XL", he misspells "au revoir" as "au revior".
XR is the only character other than Buzz Lightyear to appear in every episode of the series.
A running gag in the series is XR constantly being blown up but he is always re-built.