Skład:
Jeff Lynne – lead vocals, guitars, Moog synthesizer
Bev Bevan – drums, percussion
Richard Tandy – piano, harmonium, Moog synthesizer, guitar, backing vocals
Mike de Albuquerque – bass, backing vocals (on tracks 2, 3 & 5)
Mike Edwards – cello
Wilf Gibson – violin
Colin Walker – cello (on tracks 2, 3 & 5)
Hugh McDowell – possible cello (on tracks 1 and 4)
Bill Hunt – French horn (track 4), possible keyboards (track 1)
Roy Wood – bass, cello (on tracks 1 and 4)

Gościnnie:
Marc Bolan – guitar on ELO 2 tracks 10–12
Carl Wayne – lead vocals on The Lost Planet tracks 6–8