Whispered

Whispered is an evil virus created by Bagramon.

Digimon Xros Wars
Whispered is an evil virus created by Bagramon, and is the true Death General of Bright Land. He was inserted into Apollomon in order to control him, and forced Apollomon to trap Digimon in cages of spikes in order to create negative energy for D5.

After Apollomon speaks with the Xros Heart United Army atop his tower, about his plan to take down Bagramon, Whispered takes over their body and leaves the tower to contact Yuu Amano and Damemon, revealing Apollomon's intended deception. Later, just after Apollomon proves himself by protecting Taiki from a misaimed attack of MetalGreymon's, Yuu and Tuwarmon appear on the tower to call out Whispered. Whispered reveals himself to the Xros Heart United Army, and fully takes over Apollomon's body, transforming them into Apollomon Whispered, then drops the Xros Heart United Army into Hell's Field.