*[[Adrian Belew]] (2013) (Never made it to the road, replaced by Finck)
*Ralf Dietel (2005) (Never made it to the road, replaced by North)
*[[Josh Eustis]] (2013) ([[Tension 2013 Tour ]] only; also occasionally handled keyboards, backing vocals, saxophone)
*Kevin McMahon (1996) ([[Nights Of Nothing Tour]] only)
*[[Aaron North]] (2005-2007) (Also occasionally handled backing vocals)
====Bass====
*[[Eric Avery]] (2013) (Never made it to the road, replaced by Eustis and Palladino)
*Josh Eustis (2013) (Festivals [[NIN 2013 Festival Tour ]] only; also occasionally handled keyboards, backing vocals)
*[[Rich Fownes]] (2008) (Never made it to the road, replaced by Meldal-Johnsen)
*[[Danny Lohner]] (1994-2003) (Also occasionally handled guitar, keyboards, backing vocals)
*[[Justin Meldal-Johnsen]] (2008-2009) (Also occasionally handled guitar, keyboards, backing vocals)
*[[Pino Palladino]] (2013) (Tension 2013 Tour only)
*[[Jeordie White]] (2005-2007) (Also occasionally handled guitar, backing vocals)
*[[Chris Vrenna]] (1988) ([[VIVIsectVI Tour]] only, replaced by Talpas)
*[[James Woolley]] (1991-1994)
====Drums====
*[[Alex Carapetis]] (2005) (With Teeth Fall Arena Tour only, replaced by Freese)
*Chris Vrenna (1989-1990, 1992-1997)
*[[Jeff Ward]] (1990-1991)
====Backing Vocals====
*[[Lisa Fischer]] (2013) (Tension 2013 Tour only)*[[Sharlotte Gibson]] (2013) (Tension 2013 Tour only)
====Other====