O Game Character Name Game or Game Series Debut: Role(s) Developer(s) Game-Art-HQ Art Projects
  Octorok Legend of Zelda   Enemy Type Nintendo Link’s Blacklist
  Odolwa Legend of Zelda    Dungeon Boss  Nintendo Link’s Blacklist 

Official Art

Fan Art

Oerba Dia Vanille Final Fantasy X   Protagonist Square-Enix  
Oerba Yun Fang Oerba Yun Fang Final Fantasy XIII 2009  Protagonist  Square-Enix  
Old Man Old Man Legend of Zelda 1986    Supportive NPC  Nintendo Link’s Friendlist 
Oliver-No-No-Kuni Oliver Ni No Kuni 2010  Main Protagonist
Level-5  
Omniknight-Dota Omniknight (Purist Thunderwrath) DOTA 2013  MOBA Character    

Official Art

Fan Art

Oni Akuma Street Fighter   Fighting Game Character Capcom Street Fighter Tribute
Official Art Onion Knight Final Fantasy      Square-Enix  
  Onox Legend of Zelda   Main Antagonist  Nintendo / Capcom Link’s Blacklist 
Orianna Orianna the Lady of Clockwork League of Legends 2011   MOBA Character Riot Games  
Fan Art Oro Street Fighter   Fighting Game Character  Capcom Street Fighter Tribute
  Orochi King of Fighters   Fighting Game Boss & Character   SNK Boss Tribute R1
Official Art Orochi Chris King of Fighters   Fighting Game Character SNK   
Orochi Iori Orochi Iori King of Fighters  1997 Fighting Game Character SNK  
Orochi-Shermie Orochi Shermie King of Fighters 1997 Fighting Game Character SNK  
Official Art Orochi Yashiro King of Fighters    Fighting Game Character SNK   
Official Art Oswald King of Fighters    Fighting Game Character SNK   
Fan Art Outsider, The Dishonored   Supportive NPC