Nuka

Nuka was the secondary antagonist of The Lion King II: Simba's Pride. He was Zira's son and Vitani and Kovu's older brother.

Biography
The film hints (but doesn't explicitly state) that Nuka is Scar's son by how resentful he is of Kovu's position as Scar's heir, despite not being related. It was Scar's wish that Kovu be the next king, although Nuka believes that as the eldest, he should be king. Conflictingly however, after his death, Zira asks Scar to watch over her Nuka - if he was the son of Scar, it is likely she would have said our Nuka (though when Kovu rescues Kiara, Nala says "your" and not "our").

Nuka served primarily as a comic relief character. An example was when he and Vitani were supposed to light a fire in Kiara's hunting area, he accidentally surrounded himself with fire.

In the middle of the film, Nuka died when a bunch of logs crushed him to death as he tried to climb up on them to go after King Simba to kill him and make Zira proud. After a ceremony in honor of the now-deceased Nuka, Zira turned her attention to Kovu and slashed his eye (thus making him a scar just like Scar) in anger since she blames him for Nuka getting killed. Devastated that his brother is dead (as Scar has killed his brother Mufasa), Kovu shouts in frustration and runs away, but Zira doesn't care as she tells Vitani to let him go as she proceeds to exact her revenge on Simba.

Personality
In a similar manner to Scar and Mufasa, Nuka was jealous of his younger brother and his position as heir. He constantly tried to please his mother and carried out what she commanded, along with his sister Vitani. He eventually dies after being crushed to death by some logs while pursuing King Simba up a log dam in an attempt to make Zira proud. Zira pushes away some logs and is shocked to see Nuka fatally injured. Upon seeing that he tried to put his good efforts to make her proud, Zira tries to comfort Nuka, promising that he'll be okay, but unfortunately for her, Nuka dies and Zira angrily blames Kovu for this and she slashes him across the face, leaving him with a facial wound identical to Scar's, This shows that she really did love Nuka. When Nuka snaps the branch Vitani was fighting with, making her fall backwards, Nuka is shown to be laughing, proving him to be sadistic, like his mother, but to a much lesser degree.