Recent behind-the-scenes footage from "All of Us Are Dead" has emerged on South Korean social media. The footage comes not from "All of Us Are Dead" itself nor does it concern the zombie high school drama s principal actors, All of Us Are Dead, An Seok-hyun, Cheon Seong-il, Cho Yi-hyun, Kim Min-chan, Kim Min-sol, Kim Nam-soo, Lee Jae-gyoo, Lee Ji-hyun-XV, Lee Yoo-mi, Lomon, Park Ji-hu, Song Ha-hyun, Yoo In-soo, Yoon Chan-young