Arranged By [Strings] – Brad Delson (tracks: A3, A5, B1, B6), David Campbell (tracks: A3, A5, B1, B6), Mike Shinoda (tracks: A3, A5, B1, B6)
Backing Vocals – Brad Delson, Mr. Hahn, Phoenix (26), Rob Bourdon
Bass – Oscar Hidalgo (tracks: A3, A5, B1, B6)
Cello – Larry Corbett (tracks: A3, A5, B1, B6), Suzie Katayama (tracks: A3, A5, B1, B6)
Conductor [Strings] – David Campbell (tracks: A3, A5, B1, B6)
Engineer – Andrew Scheps, Dana Nielsen, Ethan Mates
Engineer [Assistant] – Phillip Broussard, Jr*
Engineer [Pro Tools] – Erich Talaba
Lyrics By – Chester Bennington, Mike Shinoda
Mastered By – Dave Collins, Stan Ricker
Mixed By – Neal Avron
Mixed By [Assistant] – George Gumbs, Nicolas Fournier
Performer [Linkin Park Is:] – Brad Delson, Chester Bennington, Dave Farrell, Joseph Hahn, Mike Shinoda, Rob Bourdon
Producer – Mike Shinoda, Rick Rubin
Viola – Andrew Picken (tracks: A3, A5, B1, B6), Matt Funes (tracks: A3, A5, B1, B6)
Violin – Armen Garabedian (tracks: A3, A5, B1, B6), Charles Bisharat* (tracks: A3, A5, B1, B6), Gerry Hilera* (tracks: A3, A5, B1, B6), Josefina Vergara (tracks: A3, A5, B1, B6), Julian Hallmark (tracks: A3, A5, B1, B6), Mario DeLeon (tracks: A3, A5, B1, B6), Natalie Leggett (tracks: A3, A5, B1, B6), Sara Parkins (tracks: A3, A5, B1, B6), Songa Lee-Kitto (tracks: A3, A5, B1, B6)
Vocals – Chester Bennington, Mike Shinoda
Written-By – Linkin Park