Baknaknegath is a mentioned-only character.
Baknaknegath was a senior GELF of the Sakenyako tribe, and father to it's current chief, Ekwahektay. Although dying from fever, he was presumably cured by the genius mechanoid Butler, who had saved the Sakenyako from illness before, and was teleported away to tend to the chief's father. (Krysis, Series XI)