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