Sisalik

The people afflicted by Yesterday Man's "Tomorrow." Originally developed by Dr. Eugene Armitus, the Sisalik Virus is capable of converting any human's Zeal Signature into that of the Sisalik — rendering him incapable of using any abilities he previously had. Spreading like a plague throughout the victim's very soul, the Sisalik Virus then changes its host's physicality into a half-man-half-lizard. Yesterday Man uses the Sisalik as his Soldiers in the Army of Tomorrow.

Most Sisalik are grateful for the powers, relishing in their newfound strength. Others, like Buddy, are conflicted with their own senses of humanity. Either way, they still march forth over the many hills of Yai, killing all who stand in their way — until they don't.