Schattenwächter

Schattenwächter (Pronounciation: SHA-ten-vake-ter) are Kage-Shin or something close to them were created by Valdrann as his imperial guards who serve under him with absolute loyalty and obediance. They are known to be feared for their power that almost rivals his generals.

Kingdom Hearts: Shadows of The Past
The Schattenwächter first appeared alongside with the Galactic Empire's storm troopers who along side Tawlong as ambassador to his empire upon their arrival to Radiant Garden. Concealing their identities until they 'alerted' the others of mutated Heartless breaching into the world until the two Keyblade Wielders Sora and Riku  came in time and faught the heartless, only to find out it was much like the other heartless that came to the islands earliers.