Zira

Zira is a lioness and the main villain in The Lion King II: Simba's Pride, she was voiced in the movie by Suzanne Pleshette.

Role in The Lion King II: Simba's Pride
Zira and her group of lions including her three children (Nuka, Vitani, and Kovu) were exiled to the Outlands (a desert-like area filled with termite mounds) due to supporting Scar, according to Zira, Scar hand-chose Kovu to take his place as king of the Pride Lands. Zira planned on getting revenge for her exile by raising Kovu to kill Simba and take the throne.

Kovu eventually became friendly with Simba's daughter Kiara after the two cubs escaped crocodiles on the Outland borders. Zira plotted to have Kovu save Kiara from a fire (of Nuka and Vitani's making) so he could get closer to Kiara and in turn, Simba. Then, when Simba was alone Kovu was to kill him.

This plan starts well, but Kiara and Kovu end up falling in love. This greatly angered Zira, who then set up an ambush for Simba, tricking Simba into believing Kovu had lured him there. Simba is knocked into the gorge were his father Mufasa was killed by Scar years earlier. He escaped by climbing out on a dam, when doing so he accidentally dislodged a few logs that fell and crushed Nuka. Zira blames Nuka's death on Kovu, and slashes him across the face, resulting in a facial wound identical to that of Scar's. She then browbeats him for causing Nuka's death, but the young lion quickly realizes his innocence and defies his mother for the first time.

On Kovu’s return to the Pridelands, he is exiled by force, much to Kiara's dismay. Zira then declared war on Simba, and lunched on attack on Pride Rock. Simba and Zira were about to fight each other when Kiara and Kovu intervened and stopped the battle, convincing the Outlanders and the Pridelanders that they are the same Zira who was still loyal to Scar, charged at Simba but Kiara got in the way and both tumble into a gorge. Kiara landed on a ledge but Zira fell and ended up hanging on to a cliff edge, Kiara attempted to save Zira, but she slips and fell into the river below (that had broken throught the dam) and drowns.