: Season 4 will return on August 12, and with it comes a host of new cast members. Aaron Stanford (12 Monkeys), Mo Collins (Parks and Recreation), Stephen Henderson (Lady Bird), and more are joining the show as it heads into Season 4B. The new trailer for the season teased a walker hurricane haunting the show's ensemble this time out. During the AMC series' San Diego Comic-Con Hall H panel, a fan asked whether the show might see more crossovers from The Walking Dead following Lennie James' jump from one show to another.
While none were confirmed, executive producer Scott M. Gimple's evasive answer certainly didn't rule out the possibility. 'It’s a shared universe, so it's possible. I would never tell you at this moment, but I really want to,' Gimple said.