- Jon Thor Birgisson
- solo vocalist (as Jónsi)
- John Michael Caldwell
- score production assistant
- David Channing
- scoring editor
- Dee Lewis Clay
- solo vocalist
- Caroline Dearnley
- musician: cello (as Caroline Dearney)
- Jack Dolman
- music editor
- Julie Fowlis
- vocal coach: Gaelic (as Julia Fowlis)
- Maeve Gilchrist
- musician: celtic harp
- Rick Giovinazzo
- orchestrator
- Mark Graham
- head of music preparation
- Gavin Greenaway
- conductor
- Vicki Hiatt
- music editor (uncredited)
- Kyle Stuart Howie
- musician: bagpipes
- Riley Hughes
- music preparation
- Andrew Kinney
- orchestrator
- Geoff Lawson
- orchestrator
- Kieran Leonard
- musician: bodhrán
- Freddie Light
- assistant engineer
- Paul Mounsey
- composer: additional music
- Craig Muirhead
- musician: bagpipes
- Craig Munro
- musician: bagpipes
- Nicki Richards
- music coordinator
- Naomi Sato
- music preparation
- Batu Sener
- composer: additional music
- Anthony Willis
- composer: additional music
- Nick Wollage
- score engineer
- Joe Zimmerman
- music preparation
- John Anderson
- musician: oboe (uncredited)
- Laurie Jane Anderson
- musician: viola (uncredited)
- Jo Archard
- musician: violin (uncredited)
- Max Baillie
- musician: viola (uncredited)
- Chris Baron
- musician: percussion (uncredited)
- Mark Berrow
- musician: violin (uncredited)
- Richard Berry
- musician: french horn (uncredited)
- Daniel Bhattacharya
- musician (uncredited)
- Rachel Bolt
- musician: viola (uncredited)
- Natalia Bonner
- musician: violin (uncredited)
- James Boyd
- musician: viola (uncredited)
- Cathy Bradshaw
- musician: viola (uncredited)
- Fiona Brett
- musician: violin (uncredited)
- Charlie Brown
- musician: violin (uncredited)
- Ian Burdge
- musician: cello (uncredited)
- Nick Cecconi
- scoring editor assistant (uncredited)
- Reiad Chibah
- musician: viola (uncredited)
- Gustav Clarkson
- musician: viola (uncredited)
- Paul Clarvis
- musician: percussion (uncredited)
- Phil Cobb
- musician: trumpet (uncredited)
- Peter Cobbin
- recording engineer choral (uncredited)
- Elizabeth Cooney
- musician: violin (uncredited)
- Jeremy Cornes
- musician: timpani (uncredited)
- Andrew Crowley
- musician: trumpet (uncredited)
- Laurence Davies
- musician: french horn (uncredited)
- Philip Eastop
- musician: french horn (uncredited)
- Dave Elliott
- musician: percussion (uncredited)
- Christina Emanuel
- musician: violin (uncredited)
- Dai Emanuel
- musician: violin (uncredited)
- David Fuest
- musician: clarinet (uncredited)
- Chris Garrick
- musician (uncredited)
- Tim Gill
- musician: cello (uncredited)
- Peter Gregson
- musician: cello (uncredited)
- Alison Harling
- musician: violin (uncredited)
- Dave Hartley
- musician: piano (uncredited)
- Jackie Hartley
- musician: violin (uncredited)
- Natalie Hayden
- music supervisor (uncredited)
- John Heley
- musician: cello (uncredited)
- Ian Humphries
- musician: violin (uncredited)
- Philippa Ibbotson
- musician: violin (uncredited)
- Jeremy Isaac
- musician: violin (uncredited)
- Daniel Jemison
- musician: bassoon (uncredited)
- Katherine Jenkinson
- musician: cello (uncredited)
- Karen Jones
- musician: flute (uncredited)
- Matt Jones
- score recordist (uncredited)
- Helen Kamminga
- musician: viola (uncredited)
- Skaila Kanga
- musician: harp (uncredited)
- Helen Keen
- musician: flute (uncredited)
- Paul Kegg
- musician: cello (uncredited)
- Alison Kelly
- musician: violin (uncredited)
- Gary Kettel
- musician: percussion (uncredited)
- Patrick Kiernan
- musician: violin (uncredited)
- Boguslav Kostecki
- musician: violin (uncredited)
- Jon Kull
- orchestrator (uncredited)
- Tommy Laurence
- orchestrator (uncredited)
- Edie Lehmann Boddicker
- vocal contractor (uncredited)
- Tony Lewis
- musician: cello (uncredited)
- Roger Linley
- musician: double bass (uncredited)
- Bill Lockhart
- musician: timpani (uncredited)
- Martin Loveday
- musician: cello (uncredited)
- Beatrix Lovejoy
- musician: violin (uncredited)
- Lydia Lowndes-Northcott
- musician: viola (uncredited)
- Lorne MacDougall
- musician: bagpipes (uncredited)
- Steve Mair
- musician: double bass (uncredited)
- Rita Manning
- musician: violin (uncredited)
- Jane Marshall
- musician: oboe (uncredited)
- Glyn Matthews
- musician: percussion (uncredited)
- James McLeod
- musician: violin (uncredited)
- Gavin McNaughton
- musician: bassoon (uncredited)
- Laura Melhuish
- musician: violin (uncredited)
- Lyndon Meredith
- musician: trombone (uncredited)
- Amos Miller
- musician: trombone (uncredited)
- Janey Miller
- musician: oboe (uncredited)
- John Mills
- musician: violin (uncredited)
- Perry Montague-Mason
- musician (uncredited)
- Kate Moore
- musician: trumpet (uncredited)
- Simon Munday
- musician: trumpet (uncredited)
- Shawn Murphy
- score mixer (uncredited)
- Everton Nelson
- musician: violin (uncredited)
- Dan Newell
- musician: trumpet (uncredited)
- Mark Nightingale
- musician: trombone (uncredited)
- Anna Noakes
- musician: flute (uncredited)
- Emma Owens
- musician: viola (uncredited)
- Andy Parker
- musician: viola (uncredited)
- Tom Pigott Smith
- musician: violin (uncredited)
- Anthony Pike
- musician: clarinet (uncredited)
- David Pyatt
- musician: french horn (uncredited)
- Maciej Rakowski
- musician: violin (uncredited)
- Satnam Ramgotra
- musician: percussions (uncredited)
- Simon Rayner
- musician: french horn (uncredited)
- Frank Ricotti
- musician: percussion (uncredited)
- Rachel Roberts
- musician: viola (uncredited)
- Nick Rodwell
- musician: clarinet (uncredited)
- Frank Schaefer
- musician: cello (uncredited)
- Mary Scully
- musician: double bass (uncredited)
- Sarah Sexton
- musician: violin (uncredited)
- Jackie Shave
- musician: violin (uncredited)
- Lucy Shaw
- musician: double bass (uncredited)
- Rachel Simms
- musician: bassoon (uncredited)
- Emlyn Singleton
- orchestra leader (uncredited)
- Owen Slade
- musician: tuba (uncredited)
- Benjamin Squires
- trailer music (uncredited)
- Marcus Tamkin
- music department (uncredited)
- Edward Tarrant
- musician: trombone (uncredited)
- John Ashton Thomas
- orchestrator (uncredited)
- Cathy Thompson
- musician: violin (uncredited)
- Mike Thompson
- musician: french horn (uncredited)
- Christopher Tombling
- musician: violin (uncredited)
- Johnnie Traunwieser
- additional mixing (uncredited)
- Helen Tunstall
- musician: harp (uncredited)
- Simone van der Giessen
- musician: viola (uncredited)
- Bozidar Vukotic
- musician: cello (uncredited)
- Jake Walker
- musician (uncredited)
- Allen Walley
- musician: double bass (uncredited)
- Richard Watkins
- musician: french horn (uncredited)
- Juliet Welchman
- musician: cello (uncredited)
- Bruce White
- musician: viola (uncredited)
- Debbie Widdup
- musician: violin (uncredited)
- Donald Williams
- musician: double bass (uncredited)
- Furesth Williams
- musician: drums & cymbals (uncredited)
- Steve Williams
- musician: double bass (uncredited)
- Fiona Winning
- musician: viola (uncredited)
- Andrew Wood
- musician: trombone (uncredited)
- Dave Woodcock
- musician: violin (uncredited)
- Phil Woods
- musician: french horn (uncredited)
- Tony Woollard
- musician: cello (uncredited)
- Chris Worsey
- musician: cello (uncredited)
- Warren Zielinski
- musician: violin (uncredited)
