The kids and their partners are hardly the only inhabitants of the digital world. Whether they serve to help or to hinder the partnerships, other individuals abound.

The head of the invasion of the Digital World; our main antagonist.

Era Corps
The digimon that follow Era.

The cryptic, eccentric mentor and protector

Forbidramon and Reimon
The snide, merciless leader of the Agents and his shadowy, laconic partner

Javermon's Gang
The three Reaper-class members of the Era Corps-- and their direct subordinates

BlackWarGreymon and Shamon
Friends of Deekamon's and servants to the Sovereigns, who come into play late in the game.