The author, SavageOpress1138, created Deimus to be a side character in his first short story on the Star Wars Fanon Wiki, Smuggler: Meridan's Tale. Deimus is one of three in the short story with a name, along with Meridan and Streg Onè. The name Deimus was derived from Decimus which is the middle name of Maximus Decimus Meridius from Gladiator.