|Home world:||Planet Devil|
Subtitle: Ruler of Space (宇宙の支配者 Uchū no Shihai-sha?)
- Height: Unknown
- Weight: Unknown
- Origin: Devil Star
Demon was the leader of the Alien Devil. Through the crystal ball at the base, he gives orders to the Demon Phantoms and Debira. His identity is unknown, it was never revealed, even until the final episode. His voice, however, is heard in every episode when he is commanding the Demon Phantoms.
Powers and Abilities
- Crystal Ball: Demon can comunicate with the Demon Phantoms and the Debira using a crystal ball.
|Triple Fighter Kaijin|
|Demon | Darkman | Devila | Geran | Doctor Apache | Bararan | Braker | Black Baron | Elekiller | Terrol | Crash | Black Killer | Kumoderan | Ghoston | Black Thunder | Blue Condor | Horror Eye | Baarbeeboo | Jaguard | Three Revived Phantoms (Revived Black Killer, Revived Black Thunder and Revived Kumoderan | Blooder | Doctor Beegle | Mirage | Temper-Joe | Drugger | Black Mask | Sound Killer | Agoal | Blood Power|