The Organization XIII characters were created by Tetsuya Nomura
and other members of his development staff, starting with Xemnas, the
first member, and Roxas, the last. Each member's name is an anagram of
their name prior to becoming a Nobody, along with an "x".^[3]
Each known member receives a title indicating both their role in
Organization XIII and their personality, as well as their own breed of
lesser Nobodies to control. Each member also possesses unique themed
powers.^[4] The emblem used by the Nobodies and Organization XIII was designed to look like a splintered heart as a complement to the Heartless emblem.^[5]