Dezalk

Dezalk was a Ta-Matoran living on Voya Nui. He was the first Matoran to be infected by the Piraka's Zamor Sphere Antidermis. Zaktan then ordered him to round up the other Voya Nui Matoran so the Piraka could infect them all with Antidermis as well. The only Matoran to not be infected were Velika, Garan, Dalu, Piruk, Kazi, and Balta of the Matoran Resistance Team. Dezalk is the only other Voya Nui Matoran whose name is known besides the Matoran Resistance Team. It has been comfirmed in the Bionicle Encyclopedia, that he was definetly released from the effects of the antidermis by the Toa Inika.

Trivia

 * Dezalk's appearence was never described in the books or other media. The image displayed in this article is of a Matoran cut from the Voya Nui Online Game; when asked by a fan if this Matoran could be retconned to be Dezalk, as no official pictures of Dezalk existed, Greg Farshtey said it was fine by him. Source
 * Delzak was only mentioned in Legends #1 Island of Doom.