Laid back and happy-go-lucky pilots are the ones that seemed to fit in well in the top end. An ability to get on well with everyone is pretty important in small towns and small companies.
Also, practical types - not afraid to look under the bonnet or get their hands dirty. Basically, picture a "bred in the country" nice guy that grew up helping dad fix the tractor - lots of common sense. That to me is the ideal charter pilot.