- The Killers: Production (11)
- Brandon Flowers: Composer, keyboards, vocals
- David Keuning: Composer, guitar
- Mark Stoermer: Bass, composer, fretless bass, guitar
- Ronnie Vannucci: Composer, drums

- Roger Manning: Keyboards (7)
- The Las Vegas Mass Choir: Additional vocals (2, 3, 8, 9, 12, 13)
- Becca Marie: Additional vocals (2, 3, 8, 9, 12, 13)
- Justin Diaz: Additional vocals (2, 3, 8, 9, 12, 13)
- Nina Fechner: Additional vocals (2, 3, 8, 9, 12, 13)
- Woody Harrelson: Intro narration (9)

- Bob Marley: Composer (5)
- Brian Eno: Composer (7)
- Alex Cameron: Composer (4-6, 8, 9)
- Robert "Kool" Bell: Composer (2)
- Donald Boyce: Composer (2)
- George "Funky" Brown: Composer (2)
- Robert "Spike" Mickens: Composer (2)
- Otha Nash: Composer (2)
- Claydes Smith: Composer (2)
- Dennis "D.T." Thomas: Composer (2)
- Richard Westfield: Composer (2)
- Ryan Tedder: Composer (4)
- Davide Rossi: String arrangements, strings (10)

- Jacknife Lee: Composer, engineer, guitar, keyboards, programming, mixing, producer
- Erol Alkan: Additional production, drum programming, percussion, synthesizer
- Stuart Price: Additional production, composer, keyboards, programming
- Matt Bishop: Engineer (1-10, 12, 13)
- Robert Root: Engineer, mixing (11)
- Malcolm Harrison: Assistant engineer (1-10, 12, 13)
- Jimmy Robertson: Assistant engineer (2, 12, 13)
- Nicolas Fournier: Assistant engineer (1, 8)
- Martin Cooke: Assistant engineer (1, 8)
- Dan Grech-Marguerat: Additional programming, mixing (2, 12, 13)
- Alan Moulder: Mixing (3, 4, 6, 9)
- Rich Costey: Mixing (1, 8)
- Ariel Rechtshaid: Mixing (5)
- Shawn Everett: Mixing (5)
- Caesar Edmunds: Mixing engineer (3, 4, 6, 9)
- Joel Davies: Mixing assistant (2, 12, 13)
- Charles Hicks: Mixing assistant (2, 12, 13)
- John Davis: Mastering
- Dave Kutch: Mastering (2)


- David Massey: A&R
- Gabrielle Rosen: A&R
- Steve Yegelwel: A&R
- Joe Spix: Art direction, design
- Paul Lane: Package production
- Anton Corbijn: Photography