Season 1 On April 12, 2020,
Netflix announced through a press release that
JTBC Studios and Film Monster would produce a series called
All of Us Are Dead based on the popular
webtoon Now at Our School. On April 19, 2020,
Yoon Chan-young was confirmed to star in the series as one of the students.
Park Ji-hu joined the main cast on April 22. On July 1, they were officially joined by
Cho Yi-hyun,
Lomon and
Yoo In-soo. In selecting the cast, director
Lee Jae-kyoo said, "I thought that bringing on actors who were great at acting but still unknown to the public would add to the immersion of the series". Production was temporarily suspended in August 2020 due to the re-spreading of
COVID-19 pandemic in South Korea.
Season 2 In April 2024, Park Chul-soo, the CEO of Film Monster, announced that the filming period was scheduled for 2024 and the premiere of the second season is set to take place in the second half of 2025. Netflix decided to postpone the filming schedule to 2025 for better production environment and high quality completeness. In June 2025, it was announced that the cast of the second season had been joined by
Roh Jae-won,
Lee Min-jae,
Kim Si-eun,
Seo Ji-hoon, Yoon Ga-i, Kim Min,
Ahn Dong-goo and Ryu Sung-rok. and
wrapped on February 18, 2026. ==Reception==