Horror characters with names beginning with letter O
| Image | Character Name | Record |
|---|---|---|
| Octalus W: 1 L: 1 T: 0 | Wins: 1 Losses: 1 Ties: 0 | |
| Olivia "Liv" Moore (iZombie) W: 0 L: 0 T: 0 | Wins: 0 Losses: 0 Ties: 0 | |
| Oni, The W: 1 L: 1 T: 1 | Wins: 1 Losses: 1 Ties: 1 | |
| Orca W: 1 L: 1 T: 0 | Wins: 1 Losses: 1 Ties: 0 | |
| Order of the Coagula, The W: 0 L: 2 T: 0 | Wins: 0 Losses: 2 Ties: 0 | |
| Otis B. Driftwood W: 0 L: 1 T: 0 | Wins: 0 Losses: 1 Ties: 0 | |
| Overlook Hotel, The W: 5 L: 3 T: 0 | Wins: 5 Losses: 3 Ties: 0 | |
| Oz (The Werewolf) W: 2 L: 1 T: 1 | Wins: 2 Losses: 1 Ties: 1 |
