Credit

• Guitar, Vocals - Buddy Guy
• Piano - Otis Spann (1 to 5, 7, 9, 10)
• Harmonica - Junior Wells (5, 7, 9)
• Mastered By - Greg Fulginiti
• Drums - Fred Below (1 to 5, 7, 9, 10)
• Producer [Original] - Leonard Chess
• Producer [Original] - Phil Chess
• Liner Notes - Mary Katherine Aldin
• Transferred By [Digital] - Doug Schwartz
• Engineer [Assistant] - Gary Rice
• Research [Reissue], Coordinator [Reissue] - Andy McKaie
• Baritone Saxophone - Jarrett Gibson (6)
• Tenor Saxophone - Jarrett Gibson (1 to 5, 7 to 10)
• Baritone Saxophone - Donald Hankins (1 to 5, 7, 9, 10)
• Art Direction [Reissue] - Vartan (4)
• Bass - Jack Myers
• Tenor Saxophone - Bob Neely (1 to 7, 9, 10)
• Engineer - Malcolm Chisholm
• Compiled By [Vintage Series], Editor [Vintage Series], Producer [Vintage Series] - Swan
• Design - Cathy Swan
• Design [Reissue] - DZN, The Design group
• Photography By [Backliner] - Stephanie Wiesand
• Photography By [Cover] - Ray Flerlage