I had a couple hours to kill today while waiting for my car to get serviced, and since BigBoom is going with a social, corporate agent type already, I think I'll go with Mechanic:

NAME: Strek Armstrom (nicknamed "Stretch")
RACE: Brakim (Admittance Boon from #1-27)
CLASS: Mechanic (probably Exocortex; although Experimental Weapon Prototype could really fit the whole Brakim adaptability schtick)
THEME: Vaster (this is SO perfect!)
BACKGROUND: Terraformer (Brakim originate from an irradiated wasteland, and have +4 to Swim, so check check!)
ALIGNMENT: Probably Neutral Good ("follow your conscience and put the welfare of others your crew before your own")
STARSHIP ROLE: Engineer (that –5 DC from Vaster is NICE!)
PERSONALITY: Has your car ever broken down in a desert town a hundred miles from the nearest city and there's one dusty mechanic who you can barely understand who laughs and whistles uncomfortably at the slightest possible joke? Yeah...
CATCHPHRASE: "I'm flexible."