Mark Haddon, Suzanne and Hal Pate, David Ray, and yours truly!
Also, I play guitar and electric banjo with several Griffin-area-based bands:
Kirkland & Friends (country/classic rock)
Slim Pickins Combo (Western country and swing)
My Way or the Highway (classic country)
Also, I play banjo with the occasional Macon-based The Grateful Druids (authentic Irish music) and Macon-based JT and the You Know Who's (classic rock/eclectic).