A&R – Caius Pawson
Arranged By [String Arrangements] – Jamie Smith (4)
Art Direction, Design – Phil Lee (5), Romy Madley Croft
Bass, Vocals – Oliver Sim
Cello [Cellos] – Charlotte Eksteen, Peter Gregson
Drums – Stella Mozgawa (tracks: A2, CD-2)
Engineer – Marta Salogni
Engineer [Engineered By, RAK Studios + Strongroom] – Marta Salogni
Guitar, Vocals – Romy Madley Croft
Keyboards [Keys] – Romy Madley Croft (tracks: A2, B5, CD-2, CD-10)
Lyrics By – Oliver Sim (tracks: A1 to A4, B1, B3, B4), Romy Madley Croft
Management [The XX Are Managed By, At Young Turks Management] – Caius Pawson, Simon Guzylack
Mastered By [Mastering] – John Davis (4)
Mixed By [Mixing] – David Wrench, Jamie Smith (4)
Orchestrated By [Orchestration By] – Paul Frith
Photography By [Photography] – Oliver Sim
Piano – Jamie Smith (4) (tracks: B1, CD-6)
Producer [Additional Production By] – Romy Madley Croft (tracks: A2, B5, CD-2, CD-10)
Producer [All Tracks Produced By], Engineer [All Tracks Engineered By] – Jamie Smith (4), Rodaidh McDonald
Programmed By [Additional Programming By] – David Wrench
Programmed By [Programming] – Jamie Smith (4)
Recorded By [Brass], Engineer [Engineered By] – Hal Ritson (tracks: A1, CD-1)
Strings – Iskra Strings* (tracks: A5, CD-5)
Synth [Synths], Drums, Keyboards [Keys] – Jamie Smith (4)
Viola [Violas] – Emma Owens, Laurie Anderson (5)
Violin – Jamie Smith (4) (tracks: A5, CD-5)
Violin [Violins] – Eos Counsell, James Underwood, John Smart, Oli Langford*
Vocals – Jamie Smith (4) (tracks: B5, CD-10)
Written-By [All Music Written By] – Jamie Smith (4), Oliver Sim, Romy Madley Croft