Alto Saxophone – Jackie McLean
Bass – Butch Warren (tracks: 5, 6, 9), Cecil McBee (tracks: 11), Eddie Khan (tracks: 10), Herbie Lewis (tracks: 7, 11), Jimmy Garrison (tracks: 3), Paul Chambers (3) (tracks: 2, 4), Scott Holt* (tracks: 1)
Drums – Tony Williams* (tracks: 10), Art Taylor (tracks: 3, 4, 5, 9), Billy Higgins (tracks: 6, 7, 11), Jack DeJohnette (tracks: 1), Pete La Roca (tracks: 2), Roy Haynes (tracks: 11)
Liner Notes – Masahiro Goto (2)
Photography By – Francis Wolff
Piano – Harold Mabern (tracks: 7), Herbie Hancock (tracks: 11), Kenny Drew (tracks: 4), LaMont Johnson (2) (tracks: 1), Sonny Clark (tracks: 5, 6, 9), Walter Bishop, Jr. (tracks: 3), Walter Davis Jr. (tracks: 2, 11)
Tenor Saxophone – Tina Brooks (tracks: 4)
Trombone – Grachan Moncur III (tracks: 10)
Trumpet – Blue Mitchell (tracks: 4), Charles Tolliver (tracks: 11), Donald Byrd (tracks: 2), Kenny Dorham (tracks: 6), Lee Morgan (tracks: 7), Woody Shaw (tracks: 1)
Vibraphone – Bobby Hutcherson (tracks: 10)