http://en.wikipedia.org/wiki/The_Walking_Dead_(season_2)
After the airing of the first season, Deadline.com reported that Frank Darabont had let go of the entire writing staff, and planned to use freelance writers for the second season.[12] This turned out to be not entirely accurate, and Robert Kirkman was quoted as saying that the changes to the writing staff would not affect the production of the show.[13]
In February 2011 it was announced that Glen Mazzara, who had written the first season episode "Wildfire", had been hired as a writer/executive producer for the second season and will now put together a staff of five more writers.[14]
At C2E2 members of the cast confirmed that the second season will begin shooting on June 1, 2011. Frank Darabont will write the season premiere. At the same event, cast members speculated that acclaimed author and long-time Darabont collaborator
Stephen King may write an episode.[15] Kirkman later confirmed that along with himself, Darabont and Mazzara the writing staff will consist of Scott Gimple, Evan Reilly, Angela Kang and one freelance writer, David Leslie Johnson.[16][17] Four actors have joined the cast as new characters for season 2—Scott Wilson, Lauren Cohan, Pruitt Taylor Vince, and Michael Zegen, as Hershel Greene, his daughter Maggie, Hershel's ranch hand Otis,
and a man named Randall, respectively.[18][19]
A preview of season 2 was shown during the season premiere of Breaking Bad on July 17, 2011[20] and a full length trailer was released to promote season 2 at Comic-Con 2011, on July 22, 2011.[21]
In July 2011, series developer and showrunner Frank Darabont stepped down from his position as showrunner for the series, with believed reasoning he was unable to adjust to the schedule of running a television series.[22]
Executive producer Glen Mazzara will be the series' new showrunner.[23]
Darabont's sudden departure further sparked controversy in August when The Hollywood Reporter broke a story revealing that Darabont had in fact been fired due to issues of the show's reduced budget and a strained relationship with AMC executives.[24]
The premiere will be a 90-minute episode, similar to the pilot episode. After the first seven episodes air, the series will go on hiatus, and then return on February 12, 2012, where the final six episodes of the season will begin airing.[25]