Mark L. Schatz[1] (born April 23, 1955) is an American bassist, banjoist, mandolinist, guitarist, clogger, and hambone performer who has recorded on albums for and toured with artists including Bela Fleck, Nickel Creek, Jerry Douglas, Maura O'Connell, Tony Rice, John Hartford, Emmylou Harris, Linda Ronstadt, and Tim O'Brien.