From Power Rangers Universe

Dark Specter, voiced by Christopher Cho, was known throughout the universe as the Grand Monarch of Evil. He had captured Zordon, the Power Rangers' former mentor, and began draining him of his powers. As the Grand Monarch, Dark Specter brought forth a union of villains known as the United Alliance of Evil, including Rita Repulsa and Lord Zedd, the Machine Empire, Divatox, and Astronema. Selecting Astronema to battle the Space Rangers, Dark Specter made sure they never rescued Zordon from his clutches. In Countdown to Destruction, Dark Specter finally initiated an invasion of the entire universe, assaulting Earth, Aquitar, Triforia, KO-35, and the homeworld of the Phantom Ranger. Though the attack was going well, Dark Specter was assaulted by Darkonda, who tried to slay Dark Specter with a planet-destroying missile. Though the attack was enough to destroy Dark Specter, the Grand Monarch was able to hang on long enough to swallow Darkonda's fighter jet whole, destroying the bounty hunter with him.

Dark Specter is nearly identical in appearance to the lava demon Maligore (even Divatox acknowledged the resemblence), and is capable of spitting fireballs. He is presumed to be involved in the destruction of Alpha 5.