Mick Jagger (as Joshua Alscher)
Man in the Caddy (as Timothy Bellow)
Lomax
Isabelle Allen
Alan Freed
Keith Richards
Leonard Chess
Willie Dixon (as Cedric the Entertainer)
Revetta Chess
Policeman (Little Walter beating)
Geneva's Teenage Son
Blonde Girl
Toothless Hillbilly Little Walter (as Sean Davis)
Charles Waters
Phil Chess
Shelly Feder
Engineer - Present Day (as Erik Frandsen)
Slick Pimp
Minnie Ripperton (as Suzette Azariah Gunn)
Pot Strong (as Jordan C. Haynes)
Policeman (with the Stones)
Bartender
Muddy - Age 6
Maid
Mysterious Black Man
Hubert Sumlin
Etta James (as Beyoncé Knowles)
Harmonica Player
Pot's Girlfriend Juanita
Jimmy Rogers
Chuck Berry (as Mos Def)
Manager
Bouncer
Another Blonde
Man Who Rolled 7 (as Jonathan Peck)
Hip Hop Artist
Muddy's Grandmother
Muddy's Floozy #1
Chess Engineer
Producer - Present Day
Mr. Feder
Little Walter
Guitarist
James Cotton
Geneva Wade
Muddy's Floozy #2
Howlin' Wolf
Mississippi DJ
Muddy Waters
Guitar Player (uncredited)
(Lil' Walter's) 50's sexy girl (uncredited)
Teenybopper (uncredited)
Overseer (uncredited)
Piano - Etta's Recording Recording Group (uncredited)
Picnic Boyfriend (uncredited)
Mississippi DJ (uncredited)
Chuck Berry Concert Goer (uncredited)
Violinist - Etta's Recording Group (uncredited)
Trumpet - Etta's Recording Group (uncredited)
Young Lover (uncredited)
Girlfriend (uncredited)
Field Worker (uncredited)
Chicago Cop (uncredited)
Vendor (uncredited)
Bystander (uncredited)
Little Walter's Girlfriend (uncredited)
Muddy's Band Member (uncredited)
Muddy Waters' Girlfriend (uncredited)
Shocked Bystander (uncredited)
Self (archive footage) (uncredited)
Bill Wyman (uncredited)
Officer Brown (uncredited)
Dice Player (uncredited)