Necrolai/Nikki Pimvare
The Dark Mistress of the Underworld and Queen of the Vampires, this evil spy is frequently scorned by Koragg and Morticon, who constantly call her a "hag". Her last name 'Pimvare' is 'vampire' with mixed letters. She can fly and usually serves as a scout. Necrolai is usually the one who brings up monsters and imagines schemes. She is a formidable fighter in her own right and has battled the Rangers occasionally. Due to her status as Queen of the Vampires, she is not adversely effected by garlic or sunlight. She was once obliterated by the power of the Dawn Crystal, but managed to reassemble herself during a half moon later that night. Despite her early claims of immortality, she does seem to fear Morticon and, to a lesser extent, Koragg, which would explain why she tolerates their behavior and rarely talks back to them. She showed true fear when Morticon threatened her after her repeated failures against the Rangers. After Morticon was destroyed, she brought the mummy of Calindor to the Underworld, releasing Imperious.
Necrolai is ambitious, callous, and egocentric; what she does, she does for her own benefit, intending to rise to a position of power. Being afraid of Morticon, she will not seek to rise alone beyond a certain point, but attempts to raise her own status by backing the Master. She enjoys both chaos and mischief of every kind.
Necrolai is also Leelee's mother. The father is seldom mentioned; Necrolai has claimed that she changed him into a worm. (Note that this is one of the very few cases in Power Rangers of a villain being known to have both a father and a mother.) Necrolai seems to have little or no regard for her daughter, doing nothing to help Leelee after Imperious turned her into a bug. Necrolai herself transformed Leelee into a bug, testing out the purple Mystic Morpher's powers. After Morticon's death, Necrolai suffered a minor panic attack over the loss of her leader and expressed to the Master that she did not trust Koragg to lead; when Imperious arrived, she tried to flatter him into favoring her.
In Ranger Down, Necrolai received Koragg's magic in the form of a purple Mystic Morpher, but in Koragg's Trial, Koragg took his magic back to challenge the Rangers' new Legend powers. After he pled his case to the Master, his magic was officially returned to him, and Necrolai was once again without magic.
After Leanbow freed the Rangers from the Underworld, Imperious weakened him, allowing Necrolai to capture Leanbow and bring him back to the pit where he was once again turned into Koragg by the Master.
After the destruction of the Pit and Imperious, Necrolai was shown having doubts about her current role; but the discovery of the Book of Prophecy changed this. Ignoring her daughter entirely, she followed the Book's instructions and provoked the Ten Terrors into attacking the Surface. She now appeared with Gekkor on excursions to the surface world.
Recently, Necrolai placed a scale on Leanbow that was given to her by Sculpin, so that the Ten Terrors could track him down and extract the Master's essence from him. They were successful in doing this.
Necrolai seems to see herself as inferior to the Ten Terrors. She believes that by following their orders she will spare herself any wrath they may inflict on her, and therefore is thought to obey them more out of fear than out of respect for their rank to the Master.
While Necrolai normally appears indifferent to Leelee, it is revealed in Mystic Fate that she can be maternal; when Itassis was told to destroy all humans by the Master, Necrolai begged her to spare Leelee. While Itassis was willing to do so, Sculpin demanded Leelee to die with the humans as punishment for living with them. As a result, Necrolai betrayed the Master to revive Itassis, as well as the dead Leanbow, Daggeron, and Jenji. In the process, she was turned into a human.
Soon after the final battle, she started courting Toby (who called her "Nikki"), and both she and Leelee apparently moved into a condo.
Necrolai was voiced by Donogh Rees. Nikki was portrayed by Brigitte Berger, but voiced by Donogh Rees.
Read more about this topic: Allies In Power Rangers: Mystic Force