*SPOILER ALERT*
Yes, Saix is eliminated by Sora in The World That Never Was, during the events of Kingdom Hearts II.
Saix's real name is Isa, as revealed in Kingdom Hearts Birth by Sleep.
They never say how old he is
Saix is the nobody to Isa. He and Axel's original, Lea, are first seen in Kingdom Hearts, Birth By Sleep. He was not someone already known through out the previous games.
Everybody from Organization XIII is made by the maker of Kingdom Hearts, they are not used from another Disney program
Yes. It's Luna Diviner.
6: Sora, Kaira, Saix, Luxor, Xemmas, and Ansem.
Axel tries to bait Sora to him with Kairi, but Saix finds out.
Yes, because Anti-Saix has a higher defense and attack. When you weaken him, I think he becomes just Saix.
i think Axel, Roxas and Riku are definitely the hottest guys. Xion and Namine are the hottest girls.
NO!, and Kingdom Hearts 3 is not a game.
In the first game, he is one of the tournaments within Olympus Coliseum. In the second game, he appears in Hollow Bastion where you met Saix and Axel before.
Axel's name was Lea before becoming a nobody. This is confirmed when Saix refers to him as Lea during a cutscene in Kingdom Hearts 358/2 Days. More information on Lea will be available with the release of Kingdom Hearts Birth By Sleep.