Characters whose real names have never been revealed, or if so, may be cause for doubt. Also includes characters who do not have actual names and are only known by their aliases, and characters whose full name has not been revealed.
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All items (6096)
O
- O-Sensei (DC Legends)
- O-Sensei (New Earth)
- O-Sensei (Prime Earth)
- Obeah Man (New Earth)
- Oberst von Blasko (Wonder Woman TV Series)
- Oblique (New Earth)
- Obsidian (Flash 1990 TV Series)
- Octo (Earth-One)
- Octopus (Earth-Fox)
- Octopus (Earth-One)
- Octopus (Earth-Two)
- Octopus II (Earth-Two)
- Off-World Outlaw (Teen Titans TV Series)
- Officer Daily (Arrowverse)
- Officer Isabella (New Earth)
- Ofosu (Wayne Family Adventures)
- Ohm (New Earth)
- Ojos Azule (Prime Earth)
- Olaf (Earth-Two)
- Olaf (Quality Universe)
- Old Dirty Fighter (Prime Earth)
- Old Witch (Quality Universe)
- Olga (Batman 1966 TV Series)
- Olga (New Earth)
- Oliver (Prime Earth)
- Olivia Marsdin (Arrowverse: Earth-38)
- Olympiad (Crisis on Two Earths: Crime Syndicate Earth)
- Olympian (Earth 35)
- Olympian (Powerless)
- Olympian II (Prime Earth)
- OMAC II (Earth-9)
- Omega Man (New Earth)
- Omega Prime (Absolute Universe)
- Omega-Bam-Man (Prime Earth)
- Omen (Pre-Zero Hour)
- Omicron (Earth-One)
- One-Eye (Earth-8)
- One-Eyed Jack (Damocles Universe)
- Only Child (New Earth)
- Onomatopoeia (Arrowverse)
- Onomatopoeia (Caped Crusader)
- Onomatopoeia (Green Arrow Shorts)
- Onomatopoeia (New Earth)
- Onomatopoeia (Prime Earth)
- Onslaught (Dakotaverse)
- Onyx (DC Animated Movie Universe)
- Optiman (Earth 36)
- Oracle (New Earth)
- Oracle (Prime Earth)
-
- Oracle of Delphi (New Earth)
- Oracle of Delphi (Quality Universe)
- Orange (Prime Earth)
- Orange Medal (New Earth)
- Orange of the Rainbow Raiders (New Earth)
- Orator (Prime Earth)
- Orchid (DC Animated Movie Universe)
- Ordnance (New Earth)
- Organ Grinder (New Earth)
- Organizer (Earth-One)
- Ornitho (Pre-Zero Hour)
- Ororo of Themyscira (Amalgam Universe)
- Orphan (New Earth)
- Osiris (New Earth)
- Osita (Prime Earth)
- Osprey (New Earth)
- Otis (Donnerverse)
- Otis (Prime Earth)
- Otis (Tiny Titans)
- Outkast (Arrowverse: Antimatter Universe)
- Outlaw (Earth-S)
- Output (New Earth)
- Overgirl (Earth 10)
- Overload (Out of Time)
- Overload (Prime Earth)
- Overlord (Super Friends)
- Overmaster (New Earth)
- Overmaster (Prime Earth)
- Override (New Earth)
- Overseer (New Earth)
- Overtaker (Prime Earth)
-
- Owlman (Crisis on Two Earths: Crime Syndicate Earth)
- Owlman (Earth-3)
- Owlman (Earth-Three)
- Owlman (The Brave and the Bold: Deep Cover for Batman!)
- Owlman (Tiny Titans)
- Owlwoman (DC One Million)
- Oxie (Earth-Two)
- Oxygen (The Brave and the Bold)
- Oxymoron (New Earth)