R
Richard 'Pistol' Allen
Self
Jack Ashford
Self
Bob Babbitt
Self
Benny 'Papa Zita' Benjamin
Self (archive footage)
E
Eddie 'Bongo' Brown
Self (archive footage)
Bootsy Collins
Self
J
Johnny Griffith
Self
Ben Harper
Self
J
Joe Hunter
Self
James Jamerson
Self (archive footage)
Uriel Jones
Self
Montell Jordan
Self
Chaka Khan
Self
Gerald Levert
Self
Joe Messina
Self
Meshell Ndegeocello
Self
J
Joan Osborne
Self
R
Rudy Robinson
Self
J
James Jamerson Jr.
Self
P
Paul Riser
Self
Andre Braugher
Narrator (voice)
Gary Bosek
Young Bob Babbitt