Guru-eFX
Jochen Weltjens, better known by the pseudonym of Guru-eFX, is a comic book colorist and producer.
Fantastic Four
1961–2020 · Vol. 1
Incredible Hulk
1962–2025 · Vol. 1
Iron Man
1968–2023 · Vol. 1
Ninja High School
1987–2025 · Vol. 1
Wolverine
1988–2024 · Vol. 2
X-Men Unlimited
1993–2003 · Vol. 1
Warrior Nun Areala
1994–1995 · Vol. 1
Gen13
1995–2002 · Vol. 2
Warrior Nun Areala: Rituals
1995–1996 · Vol. 1
Warrior Nun Areala: Scorpio Rose
1996–1997 · Vol. 1
Robotech
1997–1998 · Vol. 1
Crimson Nun
1997–1997 · Vol. 1
Warrior Nun Areala
1997–1998 · Vol. 2
Robotech Vermilion
1997–1997 · Vol. 1
Silver Cross
1997–1998 · Vol. 1
Warrior Nun Areala: Resurrection
1998–1999 · Vol. 1
Gold Digger
1999–2023 · Vol. 3
Warrior Nun Areala
1999–2001 · Vol. 3
Warrior Nun Areala: Ghosts of the Past
2001–2001 · Vol. 1
Dirty Pair: Sim Hell Remastered
2001–2001 · Vol. 1
Marvel Mangaverse: The Punisher
2002–2002 · Vol. 1
Marvel Mangaverse: Eternity Twilight
2002–2002 · Vol. 1
Marvel Mangaverse: New Dawn
2002–2002 · Vol. 1
Marvel Mangaverse
2002–2002 · Vol. 1
Spider-Man: Legend of the Spider-Clan
2002–2003 · Vol. 1
X-Men: Ronin
2003–2003 · Vol. 1
Venom
2003–2026 · Vol. 1
Wolverine: Snikt
2003–2003 · Vol. 1
Ultimate Fantastic Four
2004–2009 · Vol. 1
Marvel Age: Spider-Man
2004–2005 · Vol. 1
Thor: Son of Asgard
2004–2005 · Vol. 1
Astonishing X-Men
2004–2013 · Vol. 3
Amazing Fantasy
2004–2006 · Vol. 2
Iron Man
2004–2008 · Vol. 4
Marvel Adventures: Spider-Man
2005–2010 · Vol. 1
Livewires
2005–2005 · Vol. 1
Spellbinders
2005–2005 · Vol. 1
Wolverine: Soultaker
2005–2005 · Vol. 1
Marvel Adventures: Fantastic Four
2005–2009 · Vol. 1
Gravity
2005–2005 · Vol. 1
Marvel Adventures Flip Magazine
2005–2007 · Vol. 1
Captain Universe
2005–2005 · Vol. 1
Ultimate X-Men / Fantastic Four
2005–2006 · Vol. 1
New Mangaverse: The Rings of Fate
2006–2006 · Vol. 1
Untold Tales of the New Universe: Nightmask
2006–2006 · Vol. 1
Tron: The Ghost in the Machine
2006–2008 · Vol. 1
Spider-Man and Arana Special: The Hunter Revealed
2006–2006 · Vol. 1
Marvel Adventures: The Avengers
2006–2009 · Vol. 1
Metadocs: Code Black
2006–2006 · Vol. 1
X-Men: Fairy Tales
2006–2006 · Vol. 1
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