He's a robô. Pan's best friend is a robot and not a person. Sad. That's like when you watched the Windows 98 screensaver as a kid and imagined it was a game.
He sucks dick, but a little known fact about his name is that he's named after ぎる (giru), Japanese for "to steal". The first thing he does is steal the Dragon Radar.
A lot of people assume his name is a pun on "gear", but that's false.