G. F. Callahan
Issues
42
Series
25
Active
2010-2026
As Colorist (13 series)
Sonic the Hedgehog
Archie - 3 issues
Street Fighter Legends: Cammy
Udon Comics - 2 issues
Street Fighter Unlimited
Udon Comics - 2 issues
Street Fighter Back to School Special
Udon Comics - 1 issues
Mega Man
Udon Comics - 1 issues
2026 Street Fighter Swimsuit Special
Udon Comics - 1 issues
Mega Man
Archie - 1 issues
Street Fighter 6
Udon Comics - 1 issues
Street Fighter vs Final Fight
Udon Comics - 1 issues
Teenage Mutant Ninja Turtles
IDW - 1 issues
Exciting Comics
Antarctic Press - 1 issues
Street Fighter V #1 - Free Comic Book Day 2016 Special
Udon Comics - 1 issues
Street Fighter Super Combo Special - Free Comic Book Day 2015
Udon Comics - 1 issues
As Inker (23 series)
Street Fighter vs Darkstalkers
Udon Comics - 9 issues
Skullkickers
Image - 5 issues
Sonic the Hedgehog
Archie - 3 issues
Street Fighter Unlimited
Udon Comics - 2 issues
Street Fighter Legends: Cammy
Udon Comics - 2 issues
Bloodshot
Valiant Entertainment - 1 issues
2026 Street Fighter Swimsuit Special
Udon Comics - 1 issues
Teenage Mutant Ninja Turtles
IDW - 1 issues
Shadowman
Valiant Entertainment - 1 issues
Mega Man
Archie - 1 issues
Exciting Comics
Antarctic Press - 1 issues
Street Fighter vs Final Fight
Udon Comics - 1 issues
Teenage Mutant Ninja Turtles
IDW - 1 issues
Teenage Mutant Ninja Turtles
IDW - 1 issues
Archer and Armstrong
Valiant Entertainment - 1 issues
X-O Manowar
Valiant Entertainment - 1 issues
Street Fighter Legends: Ibuki
Udon Comics - 1 issues
12 Reasons to Die
Black Mask Studios - 1 issues
Street Fighter V #1 - Free Comic Book Day 2016 Special
Udon Comics - 1 issues
Street Fighter Super Combo Special - Free Comic Book Day 2015
Udon Comics - 1 issues
Street Fighter 6
Udon Comics - 1 issues
Street Fighter Back to School Special
Udon Comics - 1 issues
Mega Man
Udon Comics - 1 issues
As Penciller (25 series)
Street Fighter vs Darkstalkers
Udon Comics - 9 issues
Skullkickers
Image - 5 issues
Sonic the Hedgehog
Archie - 4 issues
Street Fighter Legends: Cammy
Udon Comics - 2 issues
Street Fighter Unlimited
Udon Comics - 2 issues
Teenage Mutant Ninja Turtles
IDW - 1 issues
Bloodshot
Valiant Entertainment - 1 issues
Mega Man
Archie - 1 issues
12 Reasons to Die
Black Mask Studios - 1 issues
Teenage Mutant Ninja Turtles
IDW - 1 issues
X-O Manowar
Valiant Entertainment - 1 issues
Mega Man
Udon Comics - 1 issues
Sonic Boom
Archie - 1 issues
Street Fighter vs Final Fight
Udon Comics - 1 issues
Street Fighter Back to School Special
Udon Comics - 1 issues
Street Fighter V #1 - Free Comic Book Day 2016 Special
Udon Comics - 1 issues
Sonic Universe
Archie - 1 issues
Exciting Comics
Antarctic Press - 1 issues
Street Fighter Super Combo Special - Free Comic Book Day 2015
Udon Comics - 1 issues
Teenage Mutant Ninja Turtles
IDW - 1 issues
2026 Street Fighter Swimsuit Special
Udon Comics - 1 issues
Street Fighter 6
Udon Comics - 1 issues
Shadowman
Valiant Entertainment - 1 issues
Street Fighter Legends: Ibuki
Udon Comics - 1 issues
Archer and Armstrong
Valiant Entertainment - 1 issues