Noah was the first person that Glenn could not save in a life or death situation.
Season 6 Episode 16 was originally titled "Something to Fear," like the comic books but was changed to "Last Day on Earth" for unknown reasons.
Glenn killed his first humans in the episode "Not Tomorrow Yet." Comic book Glenn has not taken human life.
Jon Bernthal was the first actor cast as as a series regular.
Elizabeth Rodriguez plays both Aleida Diaz on Orange is the New Black and Liza Ortiz on Fear The Walking Dead.