Demos (DCAU)

From Pop-Cult Guides

Deimos was a DC Comics supervillain created by Mike Grell as a foil for Travis Morgan the Warlord in the comic series of the same name. The character's first recorded appearance was First Issue Special #8, November (1975).

Deimos appeared in an episode of Justice League Unlimited trying to conquer Skartaris. During his campaign, he was supplied futuristic weapons by Legion of Doom members Metallo and Silver Banshee in exchange for a huge kryptonite rock. During a battle with Warlord, he met his apparent demise when he plummeted down a ledge.