Sick

"Sick" is the second episode of the third season of AMC's The Walking Dead. It is the twenty-first episode of the series overall. It premiered on October 21, 2012. It was written by Nichole Beattie and directed by Billy Gierhart.

Plot
After a traumatic event, a life hangs in the balance. Complicating matters, the group must also deal with a potential threat to their new surroundings.

Co-Stars

 * Theodus Crane as Big Tiny
 * Nick Gomez as Tomas
 * Markice Moore as Andrew
 * Vincent Ward as Oscar

Uncredited

 * Clair Danielle Canterbury, Gregory French , John Jaret, Don Teems, Alyssa V. Mullan, Anthony "Chopper" Rinaldo, Michael Maughon, & Tyler Capehart as Walkers

Deaths

 * Big Tiny
 * Tomas

Trivia

 * Last appearance of Tomas.
 * Last appearance of Big Tiny.
 * This title of the episode, "Sick", references a comment made by Oscar after seeing dead his fellow inmates.
 * This was the first episode to air on Dish Network following their agreement with AMC Networks.
 * Scott Wilson often fell asleep while shooting the scenes where Hershel is unconscious.
 * When Rick informs the prisoners about the apocalypse and how all societal structure has collapsed, what Rick says is very similar to what Mark and Selena tell Jim in the 2002 movie, 28 Days Later.
 * There were thirty confirmed walker kills in the episode and two living humans. Rick and Tomas both tied with the most kills at five walkers and one living human.

Comic Parallels

 * Rick confronting the inmates and killing their leader is adapted from Issue 19.
 * Carol requesting Glenn to bring a walker inside the prison to practice to deliver Lori's baby is adapted from a similar scene in Issue 40, where Alice requests Andrea to bring a walker to study it instead.