Linkin Park •
Chester Bennington – lead vocals •
Rob Bourdon – drums, percussion, backing vocals •
Brad Delson – lead guitar, backing vocals •
Dave "Phoenix" Farrell – bass, backing vocals •
Joe Hahn – turntables, synthesizers, samples, programming, backing vocals •
Mike Shinoda – lead and rap vocals, rhythm guitar, keyboards, samples, synthesizers
Additional musicians •
Jay-Z – rap vocals (track 3) • Ian Hornbeck – bass (track 4) •
Francis "Eg" White – guitar and piano (track 11) • Scott Koziol – bass (track 15) • Jon Green – additional guitar (track 20)
Production • Don Gilmore – production (tracks 1, 2, 4–6, 8, 15, 18, 19), engineering (tracks 1, 4, 6, 15) • Linkin Park – production (tracks 2, 5, 8, 18, 19) • Mike Shinoda – production (tracks 3, 7, 9–14, 16, 17, 20), engineering (track 9, 10, 12, 16, 20), assistant
Pro Tools (tracks 1, 4, 6, 15), additional mixing (track 16), Pro Tools editing (track 9) •
Rick Rubin – production (tracks 7, 9, 10, 12–14, 17) • Brad Delson – production (tracks 11, 20), additional production (tracks 10, 12), additional Pro Tools editing (track 9) • Andrew Dawson – co-production (track 20) • John Ewing Jr. – engineering (tracks 2, 5, 8, 19), additional engineering & Pro Tools (tracks 1, 4, 6, 15) • Andrew Scheps – engineering (tracks 7, 13, 14, 17) • Ethan Mates – engineering (tracks 7, 9, 10, 12, 13, 16, 17, 20), mixing (track 14), additional mixing (track 16), Pro Tools editing (track 9) • Dana Nielsen – engineering (tracks 7, 13, 17), additional engineering (track 14) • Matt Griffin – assistant engineer (tracks 1, 4, 6, 15) • Fox Phelps – assistant engineer (tracks 2, 5, 8, 19) • Phillip Broussard Jr. – 2nd engineer (track 14), assistant engineer (tracks 7, 13, 17) • Josh Newell – engineering (track 9), engineering assistant (track 16), Pro Tools editing (track 9) • Andrew Hayes – assistant engineer and editor (tracks 10, 12) •
Andy Wallace – mixing (tracks 1, 2, 4–6, 8, 15, 19) •
Neal Avron – mixing (tracks 7, 9, 13, 17) •
D. Sardy – mixing (track 16) • Manny Marroquin – mixing (tracks 10, 12, 18, 20) • Steve Sisco – mix engineer (tracks 1, 2, 4–6, 8, 15, 19) • Ryan Castle – mix engineer (track 16) • George Gumbs – mix assistant (tracks 7, 13, 17) • Nicolas Fournier – mix assistant (tracks 7, 9, 13, 17) • Chris Galland – mix assistant (tracks 10, 12) • Del Bowers – mix assistant (tracks 10, 12) • Kiki Cholewka – mix engineering assistant (track 16) • Erich Talaba – Pro Tools engineer (tracks 7, 13, 17) •
Brian "Big Bass" Gardner – mastering (tracks 1, 2, 4–6, 8, 10, 12, 14–16, 19, 20) • Dave Collins – mastering (tracks 7, 13, 17) •
Vlado Meller – mastering (track 9) • Mark Santangelo – mastering assistant (track 9) ==Charts==