Radiohead - Kid A line-up/musicians

• Thom Yorke – vocals, programming, keyboard, guitar, bass guitar
• Colin Greenwood – bass, sampler
• Jonny Greenwood – Ondes Martenot, guitar, string arrangements, sampler
• Ed O'Brien – guitar, programming
• Phil Selway – drums, percussion, programming

Additional musicians

• Andy Bush – trumpet
• Andy Hamilton – tenor horn
• Steve Hamilton – alto horn
• Stan Harrison – baritone horn
• Martin Hathaway – alto horn
• Mike Kearsey – bass trombone
• Liam Kerkman – trombone
• Mark Lockheart – tenor horn
• The Orchestra of St. Johns – strings
• John Lubbock – conductor
• Paul Lansky – sample of "Mild und Leise" on "Idioteque"
• Arthur Kreiger – sample of "Short Piece" on "Idioteque"