Character

Nyssa

1

Nyx

2

Nyx (Vampirella)

4

Nyxly

1

N’astirh

1

O'Dare Clan

1

Oa

1

Obadiah Stane

1

Obeah Man

2

Oberon

1

Obi-Wan Kenobi

7

Oblivion

2

Obnoxio The Clown

1

Obsidian

1

Occulus

1

Ocean Master

3

Ochi of Bestoon

2

Octavia Otto

1

Octessence

1

Octoboss

1

Oddball

1

Odessa Drake

1

Odin

13

Odinforce

1

Odion

1

Odysseus

1

Odyssey

1

Offer, The

1

Officer Downe

1

Officer Zero

1

Offspring

1

Ogdru-Jahad

1

Ogeode

2

Oggar

1

Oggy

1

Ogre

1

Ogun

1

Oizys

1

Ojo

1

Okoye

3

Oktober Guard

1

Olapet

1

Old Galactus

2

Old Gods

1

Old Hob

2

Old Lace

2

Old Lady Harley

2

Old Man Daredevil

1

Old Man Hawkeye

1

Old Man Joker

3

Old Man Logan

4

Old Man Spider

1

Old Witch

2

Olgrun

1

Olive Oyl

1

Olive Silverlock

1

Olivia Free

1

Olivia Pearce

2

Oliviah Zeveron

1

Olympian

2

OMAC

3

Omaha the Cat Dancer

2

Omaka

1

Omega

2

Omega (DC)

1

Omega Bam Man

2

Omega Black

1

Omega Clan

1

Omega Flight

1

Omega Knight

3

Omega Men

1

Omega Rangers

5

Omega Red

6

Omega Sentinel

1

Omega Spawn

2

Omega Supreme

1

Omega the Ultimate Alpha

2

Omega the Unknown

3

Omega Titans

2

Omega White

1

Omega Wolverine

1

Omni-Man

7

Omnimax

1

Omnipotentis

1