Disney's The Lion Guard

[MsMarvelDuckie]

The only problem with that theory is that we KNOW Scar and Mufasa were the only two males in the pride until Mufasa's death, and then it was JUST Scar until Simba returned and killed him. So that leaves- nobody else. Lion prides do NOT have males shifting in and out- once a male (or males) take over a pride, that's it. They will run off any other males who attempt to join, unless the other proves stronger and runs off the original male, in which case the new one kills all the cubs. If the male(s) of a pride die, then either the oldest surviving adult male takes over, or a new one will move in- and again, when the new one moves in, he kills all the cubs! (And drives out any males near breeding age.)

Nuka being the only other male who was ever born into the pride besides Kovu, and Nuka wasn't yet "of age". So unless Scar was letting another male poach in his territory (highly doubtful, given he killed his own brother to rule!) then Scar HAD to be Kovu's dad- unless Simba was doing his "kingly duties" by the other females....