After a character is killed off the TV show, the remaining cast and crew throw the cast mate a “death dinner” to celebrate the character and actor. The actors and production team the opportunity to say goodbye. Previously departed actors come back and hang out with the cast and crew during these dinners. Sarah Wayne Callies was instrumental in getting this ritual started.
During season one, Carl Grimes wears a t-shirt with the Science Dog logo on it. Science Dog is one of Robert Kirkman’s creations from the comic book “Invincible."
Walkers outnumber the living 5000 to 1.
In the comic books, Carol is dead, and Sophia is alive. However, Carol did not die the way Sophia did. After Carol's death, Sophia was adopted by Glenn and Maggie.
You can apply to be an intern on the set of The Walking Dead. However, there is over a thousand applicants each year, so it's quite competitive.