A stage play based on the series titled Live Act Ao no Exorcist ~Mashin no Rakuin~ run for nine performances at the Nippon Seinenkan hall in Tokyo's Shinjuku ward from May 11 to May 17 during 2012. Satoshi Owada directed and wrote scripts for the play. Main characters Rin and Yukio Okumura were portrayed by Ryou Kimura and Kimito Totani respectively.
- Ryō Kimura as Rin Okumura
- Kimito Totani as Yukio Okumura
- Airi Nakajima as Shiemi Moriyama
- Yūki Tomotsune as Ryuji Suguro
- Kazuki Watanabe as Renzo Shima
- Shun Maruyama as Konekomaru Miwa
- Anna Hachimine as Izumo Kamiki
- Mizuki Sashide as Noriko Paku
- Yūki Tamaki as Amaimon
- Yuya Nakahara as Igor Neuhaus
- Akira Nagata as Mephisto Pheles
- Yasuhiko Imai as Shiro Fujimoto
- The story of the LIVE ACT is yet unknown.
- There seem to be no new characters that are introduced in the LIVE ACT.