|Games||Kingdom Hearts II, Kingdom Hearts 3D: Dream Drop Distance|
Saïx is a member of Organization XIII and the Real Organization XIII. He first appears in Kingdom Hearts II. He was a key member that orchestrated the Organization's plot to use Sora to create Kingdom Hearts. He actually reveals this plot to Sora at Hollow Bastion, just after Sora defeats one thousand Heartless in a great invasion of the world. Saïx is later seen pursuing a fleeing Kairi and he is fought of by Riku. He hints to Sora that Riku had returned while he was advancing through the Organization's stronghold. After uniting with Riku and Kairi, as well as King Mickey, Sora defeats him in battle.
You fight him in The World That Never Was. His weapon is a Claymore, similar to those of the Berserker Nobody and he has its Berserk power, however, he commands much more power with his. When you fight him during the fight, he says: "Do you feel the moons power?" and "I would like to see you die fighting." His distinguishing features are an X-shaped scar on his face and his light blue hair. Saïx is also a nobody like the rest of the members of Organization XIII.
In Kingdom Hearts: 358/2 Days, Saïx acts as Roxas' boss, assigning him missions to do. He is also ordered to oversee Xion's progress. Saïx also tried to stop Roxas when he tried to leave the Organization, only to be defeated.
 Enemy File
The Organization's No. VII. Usually cool and calm, he turns into a berserker when he grips his giant blade in combat. Dodge his attacks as you watch for a rare opening. After taking damage, he will revert to his normal self, making him more susceptible to attack. Finish him quickly.
 Journal Entries
 Kingdom Hearts II
 First Entry
Organization XIII's Number VII. Nobodies like him may look like they respond emotionally, but this is, in fact, a ruse. Nobodies have no hearts.
 Second Entry
Organization XIII's Number VII. He was in pursuit of the renegade Axel, but for some reason seemed more concerned about Sora's well-being. Saïx has no heart, but knows all too well how to injure one. No doubt his poise belies a more savage nature. He also insinuated he knew something about Riku.
 Third Entry
Organization XIII's Number VII. Saïx relentlessly chased the renegade Axel. It was also he who caught Kairi after she eluded Axel, and threw her into the castle dungeon. If Saïx sees something he can use, he will—and without a second thought.
 Kingdom Hearts: 358/2 Days
Opening No. VII SAÏX Second in command who longs for the heart he does not have. Only the moon breaks his icy calm. Weapon: Claymore