Chandler Riggs' (Carl Grimes) mother and brother has appear in at least two scenes of the Walking Dead.
Tank walker was supposed to appear in season 2. Besides telling the story of Tank Walker’s death, the episode was going to show how Dale, Andrea, and Amy met.
Negan is never shown shooting a gun in the comics.
Walkers are attracted to fire, because it has the two things they still see despite their deteriorated sight: fire and movement.
Andrew Lincoln was asked Which character would die first in the zombie apocalypse. He replied, "Norman, because he would be playing with his hair." When Norman Reedus was asked the same question, he answered, "Andy, because he doesn't know how to work an iPhone."