Orphan Matron Nightingale 10 A H Humanoid Stormwind City Orphan Matron Seacole 10 A H Humanoid - Orphan Matron Twinbreeze 73 A H Humanoid Dragonblight Orphan Spell Visual Invisible Holder 1 A H Not specified - Orphaned Emerald Whelp 87 Elite A H Dragonkin - Orphaned Mammoth Calf 1 A H Beast - Orseus 17 A H Humanoid Darkshore Orsis Colossus Vehicle 60 A H Not specified Uldum Orsis Colossus Vehicle 60 A H Not specified Uldum Orsis Survivor 83 A H Humanoid - Orsis Survivor Vehicle 60 A H Not specified Uldum Orson Locke<Sharp Blades> 65 A H Humanoid Howling Fjord Orsonn<Son of Ursoc> 75 Elite A H Beast Grizzly Hills Orsonn Conversation Credit 1 A H Not specified Grizzly Hills Orsur 90 A H Undead - Ortezza<Hunter Trainer> 11 A H Humanoid Echo Isles Orthus Cliffwalker 24 A H Humanoid Stonetalon Mountains Orton Bennet<Offhand Offerings> 75 A H Humanoid Dalaran Ortor of Murkblood 67 A H Humanoid Nagrand Ortrosh 69 A H Humanoid Borean Tundra Oruhe<Stable Master> 60 A H Humanoid Shattrath City Orux Thrice-Damned 22 A H Humanoid Ashenvale Orwin Gizzmick 50 A H Humanoid - Osborn Obnoticus 29 A H Humanoid Northern Stranglethorn Osborn Obnoticus 1 A H Humanoid Northern Stranglethorn Osborne the Night Man<Rogue Trainer> 60 A H Humanoid Stormwind City Oscillating Frequency Scanner Base Bunny 1 A H Not specified - Oscillating Frequency Scanner Master Bunny 1 A H Not specified - Oscillating Frequency Scanner Top Bunny (Caster) 1 A H Not specified - Oscillating Frequency Scanner Top Bunny (Target) 1 A H Not specified - Oskar Digsong 81 A H Humanoid - Oskar Digsong's Grip 1 A H Humanoid - Oslow Pliny<Jewelcrafting Supplies> 84 A H Humanoid Twilight Highlands Oso Bramblescar 24 Elite A H Humanoid Ashenvale Osong<The Wandering Yaungol> 85 Elite A H Humanoid Temple of the Jade Serpent Osric Strang<Heavy Armor Merchant> 30 A H Humanoid Stormwind City Osrok the Immovable<Armorsmith & Blacksmithing Supplies> 65 A H Humanoid Nagrand Oss<Wand Vendor> 30 A H Humanoid The Exodar Ossco<Banker> 30 A H Humanoid The Exodar Osselan<Paladin Trainer> 40 A H Humanoid Silvermoon City Ossirian Crystal Trigger 60 A H Not specified Ruins of Ahn'Qiraj Ossirian the Unscarred ☠ Boss Boss A H Giant Ruins of Ahn'Qiraj Osul Ballista 89 A H Mechanical Townlong Steppes Osul Charger 87-88 A H Humanoid Townlong Steppes Osul Farstalker 89 A H Humanoid Townlong Steppes Osul Fire-Warrior 87 A H Humanoid Kun-Lai Summit Osul Invader 90 A H Humanoid - Osul Invader 90 A H Humanoid - Osul Invader 90 A H Humanoid - Osul Invader 88 A H Humanoid Kun-Lai Summit