The unnamed Survivalist was a minor character and survivor of the initial outbreak in Netflix’s series, Black Summer. His first and only appearance is as in the episode “Alone”, after he encounters Lance in a library and saves the latter by shooting and then bludgeoning an undead to death.
However, the man was bitten during the struggle with the undead person and was mercifully killed by Lance with a fatal blow to the back of the head to prevent reanimation.