Mauro "The KKM" Fonseca is an artist for Sonic the Comic Online. His first contribution was for the 2013 Hallowe'en Special with a cover/wallpaper, with his debut as a strip artist being in Issue 264's The Bride of Fabian Vane. Online, he tends to go by the usernames "The KKM" or "Papadripopoulos", with "The KKM" having being used as his credits in StC-O as well.
- 2013 Hallowe'en Special - Cover and wallpaper
- Issue 264 - The Bride of Fabian Vane (Lineart, Colour)
- Issues 269 and 270 - Night of the Livid Pet (Lineart)
- Issue 270 - The End of the Miracle Planet (Lineart, colour)