I think Nuka is really Zira and Scar's son, but Vitani and Kovu no. For the characteristics of Vitan, I think she is the daughter of Nala and Scar, And Kovu he is son of a random lions.

Wow, thanks. This really explains alot to me.

Yeah, they do not look, but still, as said, it could be from grandparents or some other relative. I take them all as Ziras children, but not Scars. Movies are quite opened to interpretations, so it is up to you. Some say Zira is not their real mother, but as lioness who adopted them. Some say Scar is Nukas and Vitanis father. It is all up to you to make up your own mind. But I would say Zira is for sure their mother, since they refer to her as such. And it is stated that Scar is not Kovus father. Other than that, it is up to you.

Nuka and Vitani are definitely Scar and Zira's cubs. Kovu says that Scar wasn't his father. So Kovu was adopted.

Nuka and Vitani are her real offspring though i have herd a tone of rumors like Tama and Tojo are Vitani's real parents well that is not the truth as Vitani got older you could tell she looked a hole lot like Zira and look at her closer in an older pic of her and then compare it to Zira.

Nuka is the the son of Scar and Zira

Zira is The real mother of Kovu because if you Liston to Nuka when he was rambling on how Kovu was so special well he says this "Scar wasn't even his father he just took him in" Though Kovu's father is unknown to the lion king but you can believe what you want

Everyone has their own ideas. As for me, I think Nuka is the son of Zira and Scar, and Vitani is their daughter. Kovu... he's either Scar's actual son by Zira or another lioness, or he's Zira's son, but fathered by a rogue lion. Though, I go with the latter - Kovu, Zira's son, the father's a rogue. But that's just me. Go with your own ideas people.

Just because it's in the movie, doesn't mean it's really official.

it's zira , simba's pride says it's zira . it's the official movie.

Zira is the mother of all three however Vitani and Nuka are Zira's actual offspring. Kovu was hand-picked by Scar to take his place as the king of the Pridelands before Simba reclaimed the Pridelands and thus Kovu was adopted into Zira's family when they were exiled.

Nuka is probably more influenced by Scar's genes as you can see by his black mane and eye shadowing but his blood-red eyes contribute to Zira's DNA. Vitani on the other hand has a body sculpture similar to Zira's (but then most of the Outland lionesses and Prideland lionesses to a certain extent have similar body sculptures). As far as where Kovu stands, since he's adopted, he does not have any traits of Vitani's and anything similar between them is just coincidence.

I think Nuka is really Zira and Scar's son an Vitani too, the looks can come from the grandparents too you know. Kovu is Zira and Chumvi's (unwilling) son for me