출연진
Bill Monroe
Self (archive footage)
Earl Scruggs
Self (archive footage)
Lester Flatt
Self (archive footage)
Alison Krauss
Self - Musician
Del McCoury
Self - Musician
Peter Rowan
Self - Musician
Rhonda Vincent
Self - Musician
Jerry Douglas
Self - Musician
Bobby Osborne
Self - Musician
Sam Bush
Self - Musician
Sierra Hull
Self - Musician
Ricky Skaggs
Self - Musician
Laurie Lewis
Self - Musician
Jim Lauderdale
Self - Grammy Award Winner
Graham Sharp
Self - Grammy Award Winner
Béla Fleck
Self - Musician
Abigail Washburn
Self - Grammy Award Winner
Chris Thile
Self - Grammy Award Winner
밥 딜런
Self (archive footage)
Dale Ann Bradley
Self - Musician
Alison Brown
Herself - Musician