Vitani is the tertiary antagonist of The Lion King II: Simba's Pride. She is the daughter and middle child of Zira, the younger sister of Nuka and the older sister of Kovu. Vitani's name was originally going to be Shetani, but as the word means "she-demon" in Swahili, it was changed to Vitani, which can be taken as a portmanteau meaning "I am War." She is voiced by both Lacey Chabert as a cub and Jennifer Lien as a young adult.
Vitani is seen first as a young cub, arguing with her brother Nuka over Kovu. She points out that Nuka's failure to babysit Kovu will get him in trouble, and scoffs at his claim that he could be a better leader than Kovu. When Zira returns with the wandering Kovu, Vitani greets him and challenges him to a fight. She later approves of Zira's plot to kill Simba by taking advantage of Kovu's relationship to Kiara.
As an adult, Vitani and Nuka are tasked with setting a wildfire in the Pride Lands while Kiara is hunting. The two gather fire from the Elephant's graveyard, and quickly set a large blaze. This interrupts Kiara's first hunt and forces the princess to flee, which allows Kovu to rescue Kiara and eventually enter Simba's pride. She is later seen spying on Kovu and becoming dismayed when she witnesses her brother sparing Simba's life when he could have taken him from behind. Vitani quickly informs her mother. Zira is angered, and plots an ambush of Simba, in which Vitani takes part. When Nuka is crushed by logs which fell from the dam, she rushes forward to see about her brother, and witnesses his death. Along with Zira, she is shown to mourn Nuka's death, but her feelings on Kovu's betrayal are not shown.
Vitani is shown to take part in a battle against the Pride Landers, planned by Zira as an attempt to take the throne by force. She momentarily taunts and then fights Nala, while Zira deals with Simba. Kiara and Kovu intervene, and Kiara argues that the two prides should stop fighting and come together, as there is no difference between them.
Vitani is the first to understand the truth of Kiara's words. She surprises both Zira and Kovu by being the first to rejoin Simba's pride, and makes an attempt to convince her mother that it's time to stop fighting. But Zira is angered and sees Vitani as a traitor. Zira threatens to kill her own daughter as well as Simba's pride, which shocks and disgusts the other Outsiders enough to join Simba as well. She later joins Pride Rock following the death of her mother and presumably lives the remainder of her life with the rest of the lions.