Masaya Fukunishi (29)

Kafka Hibino / Kaiju No. 8 (voice)

Asami Seto (31)

Mina Ashiro (voice)

Wataru Katoh

Reno Ichikawa (voice)

Kengo Kawanishi (39)

Soshiro Hoshina (voice)

Fairouz Ai (30)

Kikoru Shinomiya (voice) / Kaiju No. 15 (voice)

Yutaka Aoyama (59)

Masahide Tokuda (voice)

Mitsuru Miyamoto (65)

Mizoguchi (voice)

Megumi Han (34)

Kafka Hibino as a Child (voice)

TARAKO (63)

Mysterious Young Beast (voice)

Hiroki Tanaka (41)

Street Announcement (voice) / Alarm Announcement (voice)

Sayaka Kamitani (26)

Female Student (voice)

Hitomi Kitazaki

Female Announcer (voice) / Youngster's Mother (voice)

Yuuki Takada (31)

Girl (voice)

Sachiko Kojima (45)

Girl's Mother (voice)

Hiroshi Iwasaki (70)

Old Man (voice)

Tomokazu Seki (51)

AI (voice)

Cho (66)

Sebasu (voice)

Hana Hishikawa (20)

Examinee (voice) / Risa (voice) / Girl (voice)

Takahiro Yoshino

Operator (voice)

Mutsumi Tamura (36)

Tae Nakanoshima (voice)

Tessyo Genda (75)

Isao Shinomiya (voice)

Ivan Shibata

Hiroto Mori (voice) / Troops Member (voice) / Security Guard (voice) / Self-Defense Forces Member (voice)

Hiroyuki Yoshino (50)

Kaiju No. 9 (voice)

Tomokazu Sugita (43)

Takamichi Hotaka (voice)

Katsuyuki Miura

Troops Member (voice) / Security Guard (voice)

Makoto Takahashi

Troops Member (voice) / Examinee (voice)

Ryo Sugisaki (44)

Risa's Father (voice)

Misa Kato

Mother (voice)

Mayuko Kazama

Hakua Igarashi (voice)

Nene Hieda (27)

Akari Minase (voice) / Haruichi's Friend (voice) / Nurse (voice) / Girl (voice) / Operator (voice) / Citizen (voice) / Troops Member (voice)