Demon - The RuneScape Wiki

Demons are a class of creature including several different races, who all have in common that they at some point have lived on and ruled the demon world Infernus. The three known races of demons are Avernic, Chthonians, and Infernals.

Ripper demon (species), RuneScape Wiki

Lesser demon (Wizards' Tower), RuneScape Wiki

Black demon - The RuneScape Wiki

Zebub, RuneScape Wiki

Demonic throne - OSRS Wiki

Demon - The RuneScape Wiki

The Killer, RuneScape Wiki

Delrith (historical), RuneScape Wiki

Nipper demon - The RuneScape Wiki

Armadylean golem master, RuneScape Wiki

Tormented demon - The RuneScape Wiki