 Octopussy, Caroline Jamhour |  Offering to Cthulhu, Aodemir |  Offering to Cthulhu, Andy Walsh |  Offering to Cthulhu II, Andy Walsh |  Oh Shoggoth!, Nick Derington |
 Old Cthuhlu after his wings fell off, Steve Somers |  Old Cults Cthulhu, Scott Purdy |  Old Innsmouth, Greg Onychuk |  The Old One, Felipe Escobar Bravo |  Old One, Tatsuya Nottsuo |
 Old one 3, Hrvoje Silic |  Old One Cthulhu, James Daly III |  Old One Hastur, James Daly III |  Old One in the Dawn of Time, Claudio Bergamín |  Old Ones, autor desconocido |
 Old Ones, Krakenkatz |  Old Ones, Jeff Remmer |  Old Ones Emerge, Darius Zkieliszek |  The Old Ones Return, Dave Palumbo |  The Old Ones Shall Be, RJ Palmer |
 The Oldest Emotion, David García Forés |  Omega Alumnus, Patrick McEvoy |  One Nation under Cthulhu, Klaivu |  One Who Waits, Allen Williams |  Oneirology, Lois van Baarle |