Baritone Saxophone, Piano – Gerry Mulligan
Bass – Red Mitchell
Drums – Chico Hamilton (tracks: A1 to A4), Larry Bunker (tracks: B1 to B3)
Featuring, Guest – Bob Brookmeyer, Zoot Sims
Performer – The Gerry Mulligan Sextet, The Gerry Mulligan Quartet
Tenor Saxophone – Zoot Sims (tracks: B1 to B3)
Trombone [Valve Trombone], Piano – Bob Brookmeyer (tracks: B1 to B3)
Trumpet – Jon Eardley