A&R – Dan Keeling
Arranged By [Strings] – Audrey Riley
Computer [Computer Wizardry] – Carmen Rizzo, Mark Phythian, Rob Smith (3)
Design, Art Direction – Tappin Gofton
Engineer [Mix Protools Engineer] – Keith Gary
Lacquer Cut By – RKS*
Management – Dave Holmes (7), Estelle Wilkinson
Mastered By – Chris Athens, George Marino
Mastered By [Assisted By] – Adam Noble, Adam Scheuermann, Andrea Wright (2), Brad Spence, Bryan Russell (2), Dan Porter, Jake Jackson, Jon Bailey, Jon Withnal*, Mat Lejeune*, Mike Pierce (3), Rob Smith (3), Taz Mattar, Tim Roe, Will Hensley
Mixed By – Michael H. Brauer
Other [Spark Ignited By] – Rich Costey
Other [Wise Words By] – Phil Harvey
Photography By – Coldplay, Kevin Westenberg, Tom Sheehan (3)
Producer – Coldplay, Danton Supple (tracks: X1, X2, X5 to Y5), Ken Nelson (tracks: X3, X4, Y6, +)
Songwriter – Martin* (tracks: X1 to X4, X6 to +), Berryman* (tracks: X1 to X4, X6 to +), Buckland* (tracks: X1 to X4, X6 to +), Champion* (tracks: X1 to X4, X6 to +)
Strings [Strings Played By] – Ann Lines, Audrey Riley, Chris Tombling, Greg Warren Wilson, Laura Melhuish, Peter Lale, Richard George, Sue Dench