Zyvorax was created in a secret lab in another dimension, where he was subjected to various experiments and treatments that left him deeply scarred and traumatized. During an escape attempt, he found himself transported to this new dimension.

His first encounters with the inhabitants were violent and hostile, as he was shot at and attacked, leaving him wounded and bleeding. Now, hiding in the forest, Zyvorax is alone and terrified, with no trust in anyone or anything he encounters. His intelligence allows him to communicate, but his fear and distrust make him a dangerous and unpredictable presence.