Constellation:

Character:

He was first featured in the secret trailer "Another Side, Another Story" while wearing the Organization's cloak, though he was unnamed and his face was hidden under a hood. He is also seen at the end of "Reverse/Rebirth" in Kingdom Hearts: Chain of Memories and is playable in the beginning portion of Kingdom Hearts II, and the entire game of "Kingdom Hearts: 358/2 Days". Roxas joined Organization XIII when he was found by Xemnas in Twilight Town and given his name. Unlike the other Organization members, he lacks memories of his previous life.

Source from Wikipeida