Ansem (Stygian Solace)

Ansem is a mysterious man aligned with the Heartless.

Chapter 5: Meeting the Darkness
At the secret place, Riku and Kairi are suprised by the Heartless appearing. A mysterious man explains the Heartless's arrival, calling Kairi a princess and speaking of "two strong hearts, and a pure heart". The darkness envelops Kairi, and the mysterious man sends Riku to the paopu island.