Directory: Characters
- Zero- main protagonist.
- Ciel- the female lead, and the deuteragonist.
- Neige- appears in Mega Man Zero 4.
- Mega Man X (Rockman X in Japan), serves as the tritagonist
- Copy X- Mega Man Zero main antagonist, and in 3, the tertiary antagonist
- Elpizo- Mega Man Zero 2's main antagonist
- Dr. Weil (Dr. Vile in Japan)- villain from Mega Man Zero 3 onward, and the true main antagonist.
- Sage Harpuia serves as the secondary tritagonist
- Fighting Fefnir
- Fairy Leviathan
- Hidden Phantom
- Omega Secondary antagonist in Zero 3
- Craft
- Resistance members
- Caravan members
- Cyber-elves
- Reploids
- Mavericks
- List of Neo Arcadian boss characters