Geez Con, I knew a "Biff" for awhile a few years ago. The one I knew had a very lovely wife (not just her looks either) who was somewhat of a celebrity and whose initials were the same as those mentioned in an earlier post by OK. I feel pretty sure it's the same individual.
Anyway, I first met ol' Biff at a local airport pilot lounge I used to frequent. He turned up there one day and began "holding court", regaling the usual denizens with tales of daring-do from his "Marshall Service Days". And it's just as you say, impeccably stylish with perfect hair and the kind of charm and charisma that a great many people seem to find quite appealing. A real charmer this one! But under the facade lay a very large and extremely fragile ego. Ah well, not entirely unheard of in aviation circles is it?
I'm reminded of the Earnest K Gann story about "Dudley" in Fate is the hunter...