Art Direction – Blue Source
Bass [Basses], Backing Vocals, Vibraphone – Chris Wolstenholme
Cello – Caroline Lavelle
Drums, Percussion [Various] – Dominic Howard
Engineer – David Bottrill (tracks: A1, A2, B3, D1), John Leckie (tracks: B1, B2, C1 to C3, D2, D3), Ric Peet (tracks: B1, B2, C1 to C3, D2, D3)
Engineer [Additional] – Chris Brown (8) (tracks: B1, B2, C1 to C3, D2, D3), Steve Cooper (3) (tracks: A1, A2, B3, D1)
Engineer [Assistant, Abbey Road] – Mirek Styles*
Engineer [Assistant, Astoria] – Damon Iddins
Engineer [Assistant, Real World] – Claire Lewis
Engineer [Assistant, Sawmills] – Mark Thomas (6)
Executive-Producer – Dennis Smith (3), Safta Jaffery
Illustration [Cover Image] – William Eagar
Illustration [Origin Of Simmetry] – Adam Cruickshank, Austin (7), Butch Gordon, Darrell Gibbs, David Foldvari, Leo Marcantonio, Marilyn Petridean, Simon Earith, Tim Berry, Tomi Oladipo
Lead Vocals, Guitar [Guitars], Keyboards [Keyboard Instruments], Arranged By [String Arrangements By] – Matthew Bellamy
Mastered By – Ray Staff
Mixed By – John Cornfield, Muse
Performer – Muse
Producer – David Bottrill (tracks: A1, A2, B3, D1), John Leckie (tracks: B1, B2, C1 to C3, D2, D3), Muse
Programmed By – Chris Brown (8) (tracks: B1, B2, C1 to C3, D2, D3)
Songwriter – Matthew Bellamy (tracks: A1 to D1, D3)
Viola – Clare Finnimore
Violin – Jacqueline Norrie, Sara Herbert