Cid Highwind

A staple of any Final Fantasy game, and therefore Kingdom Hearts, Cid is originally a resident of Radiant Garden; also known as Hollow Bastion.  When his world fell to darkness, he escaped on his own airship with Leon, Yuffie, and Aerith to Traverse Town.  He's clearly a skilled airman and often offers assistance and repairs to Sora and the gang for their gummi ship during their first adventure.  While in Traverse Town, he owns the accessory shop and allows the Moogles to run a synthesis shop above him.  After returning to his home world he becomes a founding member of the Hollow Bastion Restoration Committee. He has now become the go-to person for any crisis of a technological capacity, and most recently worked with Sora's data to see if his whereabouts could be located.