John Lennon: lead, harmony and background vocals, lead, rhythm guitar and acoustic guitars; tape loops and sound effects; Hammond organ and harmonium; fingersnaps, handclaps and tambourine.
Paul McCartney: lead, harmony and background vocals; bass guitar; piano; tape loops and sound effects; clavichord on "For No One"; lead guitar on "Taxman"; handclaps and fingersnaps.
George Harrison: lead, harmony and background vocals; lead, rythm and acoustic guitars; tamboura; handclaps, fingersnaps, tambourine and maracas on "Yellow Submarine" and "Doctor Robert".
Ringo Starr: lead vocals; drums, tambourine and maracas.
George Martin: producer; piano on "Good Day Sunshine" and "Tomorrow Never Knows"; Hammond organ on "Got to Get You into My Life"; samples of the marching band on "Yellow submarine".
Geoff Emerick: recording and mixing engineer; samples of the marching band on "Yellow submarine".
Alan Civil: French horn on "For No One".
Mal Evans: bass drum and background vocals on "Yellow Submarine".
Anil Bhagwat: tabla on "Love You To".
Marianne Faithfull: background vocals on "Yellow Submarine" (uncredited).
Brian Jones: background noises on "Yellow Submarine" (uncredited).
Donovan: backing vocals on "Yellow Submarine" (uncredited).
Session musicians: four violins, two violas, two cellos and one doublebass on "Eleanor Rigby"; brass section on "Got to get you into my life": orchestrated and conducted by George Martin.
Recording produced by George Martin
Cover designed by Klaus Voormann
Back cover photo by Robert Wittaker