Orobas
Os Saebbi (aka Ben Os)
Oscar "Froger" Zając
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Oscar (aka Oz, aka Reaper)
Óscar Camacho (aka Oskar, aka Stormrage)
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Mexico 
(Mexico City, Federal District)
Hellnomorf, Meltdown (MEX), Men At Arms (MEX), Tenderness, Tenderizer
(Mexico City, Federal District) Hellnomorf, Meltdown (MEX), Men At Arms (MEX), Tenderness, Tenderizer
Óscar Clorio Basurto
Mexico (Mexico City, Federal District)
Cenotaph (MEX), Shub Niggurath (MEX), The Suffering, Heavens Decay, Reverence To Paroxysm, Funereal Moon, Denial (MEX), Darkcreed
(Mexico City, Federal District) Cenotaph (MEX), Shub Niggurath (MEX), The Suffering, Heavens Decay, Reverence To Paroxysm, Funereal Moon, Denial (MEX), Darkcreed
Óscar Diez
Oscar Dronjak
(Mölndal, Västra Götaland) Oscar Escalante
Oscar Espinoza Noboa
Oscar Forsman
Óscar García (aka OG, aka The Executioner, aka Exxxcecutioner)
Mexico (Santiago de Querétaro, Querétaro)
Putrefact, Infinitum Obscure, Ravager (MEX), Ex Inferiis, Demonized (MEX), Disgorge (MEX), Hacavitz, Morbosidad, Impiety, Black Hate, Raped God 666
(Santiago de Querétaro, Querétaro) Putrefact, Infinitum Obscure, Ravager (MEX), Ex Inferiis, Demonized (MEX), Disgorge (MEX), Hacavitz, Morbosidad, Impiety, Black Hate, Raped God 666
Óscar Gómez (aka Óscar G. Comendador, aka Oskar GC)
Spain 
(Béjar, Castill and León)
Lethargic, K-ØS, Llvme, The Monarch (ESP), Mind Holocaust, Evil Rise
(Béjar, Castill and León) Lethargic, K-ØS, Llvme, The Monarch (ESP), Mind Holocaust, Evil Rise
Oscar Kuźniar
(Rzeszów, Subcarpathian) Oscar Kyaw
Oscar Lizcano
Oscar López (aka Brutalizer)
Oscar Lugones
Oscar Ortega (aka Executions)
Spain (Bilbao, Basque Country)
Tomb (OTH), Engulfed In Repugnance, Forensick, Molecular Fragmentation, Scatology Secretion, Induced, Ergosphere, Into The Ashes, Perpetual Gestation, Servants Of The Sword, Undeciphered, Cystectomy, Decortication (OTH), Tortured (OTH), Fixation On Suffering, Strappado (ESP), Cerebral Effusion, Esophageal, Endoparasitic, Putreseminal Viscosity, Septycemia, Intraocular Anomalies
(Bilbao, Basque Country) Tomb (OTH), Engulfed In Repugnance, Forensick, Molecular Fragmentation, Scatology Secretion, Induced, Ergosphere, Into The Ashes, Perpetual Gestation, Servants Of The Sword, Undeciphered, Cystectomy, Decortication (OTH), Tortured (OTH), Fixation On Suffering, Strappado (ESP), Cerebral Effusion, Esophageal, Endoparasitic, Putreseminal Viscosity, Septycemia, Intraocular Anomalies
Oscar Papaluca
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