*Trent Reznor
===Live Band Members===
*[[Adrian Belew]] (2013– 2013- )*[[Alessandro Cortini]] (2004–20082004-2008, 2013– 2013- )*[[Josh Eustis]] (2013– 2013- )*[[Robin Finck]] (1994–20001994-1996, 2008– 1999-2000, 2008- )*[[Ilan Rubin]] (2009– 2009- )
===Former Members===
*Ralf Dietel (2005) (never made it to the road; replaced by North)
*Kevin McMahon ([[Nights Of Nothing Tour]], 1996)
*[[Richard Patrick]] (1989–19931989-1993)*[[Aaron North]] (2005–20072005-2007)
====Bass====
*[[Rich Fownes]] (2008) (never made it to the road; replaced by Meldal-Johnsen)
*[[Danny Lohner]] (1994–20031994-2003) (Also occasionally handled guitar, synthesizers, backing vocals)*[[Jeordie White]] (2005–20072005-2007) (Also occasionally handled guitar, backing vocals)*[[Justin Meldal-Johnsen]] (2008–20092008-2009) (Also occasionally handled guitar, synthesizers, backing vocals)
*[[Eric Avery]] (2013) (never made it to the road; replaced by Eustis)
====Keyboards====
*[[Charlie Clouser]] (1994–20011994-2001) (Also played theremin on the Fragility tour, some drums on the [[Dissonance]] tour)
*[[David Haymes]] (1990)
*Brian Liesegang (Replacement for Mars for a few nights; helped in the studio on ''Broken'' when Woolley was gone; featured in one of the music videos for "[[Gave Up]]")
*[[Nick Rushe]] (1990)
*[[Lee Mars]] (1990-1991)
*[[James Woolley]] (1991–19941991-1994)
*[[Chris Vrenna]] (1988)
*[[Gary Talpas]] (1989) (First live keyboardist for a few shows of the [["Pretty Hate Machine" Promotional Tour|Pretty Hate Machine Promotional tour]], replaced by Rushe; also the original NIN art director)
====Drums====
*[[Alex Carapetis]] (2005)
*[[Jerome Dillon]] (1999–20051999-2005)*[[Josh Freese]] (2005–20082005-2008)
*[[Ron Musarra]] (1988)
*[[Chris Vrenna]] (1988-1990, 1992-1997)