Bass – Paul Chambers (3) (tracks: 1 to 6), Percy Heath (tracks: 1 to 6), Wendell Marshall (tracks: 7 to 9)
Drums – Kenny Clarke (tracks: 7 to 9), Roy Haynes (tracks: 1 to 6)
Piano – Gil Coggins (tracks: 7 to 9), Sonny Clark (tracks: 1 to 6)
Tenor Saxophone – Sonny Rollins
Trombone – Jimmy Cleveland (tracks: 7 to 9)

Track 1 to 6 recorded June 1957. CD booklet says: "Paul Chambers o [or] Percy Heath, contrabajo".
Track 7 to 9 recorded November 1957.