Leonard Chess
Muddy Waters
Geneva Wade
Little Walter
Willie Dixon
Revetta Chess
Howlin' Wolf
Isabelle Allen
Alan Freed
Chess Engineer
Chuck Berry
Etta James
Mick Jagger
Man in the Caddy
Lomax
Keith Richards
Policeman (Little Walter beating)
Geneva's Teenage Son
Blonde Girl
Toothless Hillbilly Little Walter
Charles Waters
Policeman (with Chuck Berry)
Phil Chess
Shelly Feder
Engineer - Present Day
Slick Pimp
Minnie Ripperton
Pot Strong
Policeman (with the Stones)
Bartender
Muddy - Age 6
Maid
Mysterious Black Man
Hubert Sumlin
Harmonica Player
Pot's Girlfriend Juanita
Jimmy Rogers
Manager
Bouncer
Another Blonde
Man Who Rolled 7
Hip Hop Artist
Muddy's Grandmother
Muddy's Floozy #1
Producer - Present Day
Mr. Feder
Guitarist
James Cotton
Muddy's Floozy #2
Mississippi DJ
Guitar Player (uncredited)
Little Walter's Girlfriend (uncredited)
Teenybopper (uncredited)
Overseer (uncredited)
Picnic Boyfriend (uncredited)
Mississippi DJ (uncredited)
Chuck Berry Concertgoer (uncredited)
Etta's Violinist (uncredited)
Etta's Trumpet Player (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)
Officer Brown (uncredited)
Dice Player (uncredited)