23, Exin alpha. Status: unknown
As the superior specimen of the advanced Exin species, Grzax was granted an unusual amount of autonomy after being infected by slag. Though connected to the Hive mind, Grzax retained his personality, much like William Slade.
The Exin race has a natural resistance to mutation, but they are just as prone to infection and mind-control as humans. When the slag brain was destroyed on Krozox, many of the Exin went completely mad due to fractured minds. This led to plenty of confusion regarding the relationship between slag and the Exin.