Paul Rodgers - lead vocals, electric & acoustic guitars, piano on "Easy on My Soul"
Paul Kossoff - guitar
John "Rabbit" Bundrick - electric & acoustic piano, organ, backing vocals, glockenspiel
Tetsu Yamauchi - bass guitar, percussion
Simon Kirke - drums, percussion, backing vocals and rhythm guitar on "Muddy Water"
"Snuffy" Walden - guitar on "Easy on My Soul"
Rebop Kwaku Baah - congas on "Wishing Well"
Produced by Free
Engineer: Richard Digby Smith
Re-mix engineer: Andy Johns
Assistant engineers: Bill, Rhett, Richard, Howard and Phil
Cover design: John Glover and Dick Polak
Photography: Dick Polak
Graphics: G.G.S. Associates
Recorded at Island Studios in October and November 1972