Karl Rudolf Bauerfeind, pseudonim Charlie (ur. 30 maja 1963 w Erlangen) – niemiecki producent muzyczny i inżynier dźwięku. Znany stał się ze współpracy z zespołami heavy i power metalowymi, takimi jak Blind Guardian, Gamma Ray, Angra czy Rage.
Wybrana dyskografia
- Angels Cry (1993)
- Evil Warning (EP, 1994)
- Holy Land (1996)
- Freedom Call (EP, 1996)
- Holy Live (1997)
- Avalon
- Mystic Places (1997)
- Vision Eden (1998)
- Shadow Zone (2002)
- Kings and Queens (2004)
- Mystica (2006)
- Diamonds Unlocked (2007)
- Tales of the Crown (2008)
- The Crest (2010)
- Circle of the Oath (2012)
- Into the Storm (2014)
- Game of Sins (2016)
- Knights Call (2018)
- Azeroth
- Azeroth (2000)
- Nightfall in Middle-Earth (1998)
- A Night at the Opera (2002)
- A Twist in the Myth (2006)
- At the Edge of Time (2010)
- Beyond the Red Mirror (2015)
- Legacy of the Dark Lands (2019)
- The God Machine (2022)
- Brainstorm
- Unholy (2002)
- Beyond the Gates (2004)
- To Die For (2011)
- Insanity and Genius (1993)
- Land of the Free (1995)
- Somewhere Out in Space (1997)
- Crimson Thunder (2002)
- Chapter V: Unbent, Unbowed, Unbroken (2005)
- Threshold (2006)
- No Sacrifice, No Victory (2009)
- The Dark Ride (2000)
- Rabbit Don’t Come Easy (2003)
- Keeper of the Seven Keys – The Legacy (2005)
- Gambling with the Devil (2007)
- Unarmed (2009)
- 7 Sinners (2010)
- Straight Out of Hell (2013)
- My God-Given Right (2015)
- Helloween (2021)
- Giants and Monsters (2025)
- We Are Motörhead (2000)
- Seven Seals (2005)
- New Religion (2007)
- Unity (2002)
- Soundchaser (2003)
- Speak of the Dead (2006)
- Carved in Stone (2008)
- Stings to a Web (2010)
- 21 (2012)
- Black Hand Inn (1994)
- Metalhead (1999)
- Killing Ground (2001)
- Heavy Metal Thunder (2002)
- Lionheart (2004)
- The Inner Sanctum (2007)
- Into the Labirynth (2009)
- Call to Arms (2011)
- Cast in Stone (1997)
- Resurrection (2000)