Monster (TV) Cast
The cast of Monster. Updated on October 5, 2025.
216 actors
Gorō Naya
as Blind Old Man (voice) (1 episode)

Gorō Naya lends his voice to the character of the Blind Old Man in Monster. He skillfully portrays the enigmatic and mysterious nature of the character.

Mami Koyama
as Eva (voice) (18 episodes)

Mami Koyama brings life to the character of Eva in Monster. Her voice captures the complexity of Eva's emotions, adding depth to the character.

Masaru Ikeda
as Heinemann (voice) (2 episodes)

Masaru Ikeda delivers a compelling performance as Heinemann in Monster. His voice captures the authoritative and intelligent nature of the character, making him a memorable part of the show.

Yasuyoshi Hara
as Dr. Becker (voice) (6 episodes)

Yasuyoshi Hara portrays the character of Dr. Becker in Monster. Through his voice acting, he effectively conveys Dr. Becker's expertise and dedication to his profession.

Masahiko Tanaka
as Dr. Boyer (voice) (3 episodes)

Masahiko Tanaka lends his voice to the character of Dr. Boyer in Monster. His portrayal of Dr. Boyer showcases the character's knowledge and ambition, adding depth to the overall storyline.

Hiroshi Yanaka
as Dr. Eizen (voice) (3 episodes)

Hiroshi Yanaka brings the character of Dr. Eizen to life in Monster. His voice captures Dr. Eizen's wisdom and experience, making the character a pivotal part of the show.

Kiri Yoshizawa
as Boy (voice) (1 episode)

Kiri Yoshizawa showcases versatility in Monster by voicing both the Boy and Nurse B. Through his voice acting, he effectively portrays the contrasting personalities of these two characters, enhancing the overall storytelling.

Mitsuaki Madono
as Dr. Norden (voice) (3 episodes)
Hidenobu Kiuchi
as Tenma (voice) (74 episodes)
Tsutomu Isobe
as Inspector Lunge (voice) (24 episodes)
Hikaru Miyata
as Chairman (voice) (1 episode)
Yasuhiko Kawazu
as Lunge's Partner (voice) (1 episode)
Tamio Ohki
as Nina's Father (voice) (2 episodes)
Yukari Nozawa
as Nina's Mother (voice) (2 episodes)
Taimei Suzuki
as Professor Kronecker (voice) (2 episodes)
Naoya Uchida
as Mr. Geidel (voice) (2 episodes)
Ryuji Nakagi
as Inspector Weissbach (voice) (3 episodes)
Megu Ashiro
as Clara (voice) (2 episodes)
Mariko Takigawa
as Woman (voice) (1 episode)
Yosuke Akimoto
as Maurer (voice) (2 episodes)
Yuji Mikimoto
as Muller (voice) (2 episodes)
Fumio Matsuoka
as Hess (voice) (2 episodes)
Fubito Yamano
as Bernhardt (voice) (2 episodes)
Machiko Tanaka
as Girl (voice) (1 episode)
Yoshito Yasuhara
as Heckel (voice) (7 episodes)
Kunihiko Yasui
as Man (voice) (1 episode)
Kiyonobu Suzuki
as Max (voice) (1 episode)
Tomohiro Nishimura
as Karl (voice) (1 episode)
Junko Takeuchi
as Dieter (voice) (19 episodes)
Masaaki Yajima
as Hartmann (voice) (2 episodes)
Naoko Kouda
as Elna (voice) (2 episodes)
Mamiko Noto
as Nina (voice) (27 episodes)
Katsuhiko Kobayashi
as Schumann (voice) (2 episodes)
Ikuko Tani
as Petra (voice) (2 episodes)
Mitsuru Miyamoto
as Heinz (voice) (2 episodes)
Takayasu Usui
as Reporter B (voice) (1 episode)
Shirô Saitô
as Boss (voice) (1 episode)
Ikuya Sawaki
as Minturk (voice) (1 episode)
Kazue Komiya
as Lunge's Wife (voice) (1 episode)
Aya Ishizu
as Lunge's Daughter (voice) (2 episodes)
Yoshiyuki Kaneko
as Gardener (voice) (1 episode)
Sayuri Ikemoto
as Charlotte (voice) (1 episode)
Kazuo Kumakura
as Baby (voice) (5 episodes)
Yasuyuki Kase
as Guest A (voice) (1 episode)
Iemasa Kayumi
as Professor Goedelitz (voice) (1 episode)
Kumiko Takizawa
as Aishe (voice) (2 episodes)
Yoko Soumi
as Prostitute (voice) (3 episodes)
Shin Mori
as Guest A (voice) (1 episode)
Isamu Sugaya
as Guest B (voice) (1 episode)
Koichi Kitamura
as General Wolf (voice) (2 episodes)
Mitsuru Ogata
as Baby's Subordinate A (voice) (1 episode)
Aya Endo
as Inge (voice) (2 episodes)
Ryūji Saikachi
as Dennis (voice) (1 episode)
Koji Ishii
as Perpetrator (voice) (1 episode)
Nanako Fukushima
as Announcer (voice) (1 episode)
Minoru Hirano
as Criminal (voice) (1 episode)
Nozomu Sasaki
as Johan (voice) (20 episodes)
Kazuhiro Nakata
as Man in Castle (voice) (1 episode)
Fumihiko Tachiki
as Subordinate (voice) (1 episode)
Banjo Ginga
as Rosso (voice) (1 episode)
Takuma Suzuki
as Doctor B (voice) (4 episodes)
Takayuki Sugo
as Dr. Gillen (voice) (13 episodes)
Rikiya Koyama
as Jürgens (voice) (2 episodes)
Masashi Hirose
as Criminal 1 (voice) (1 episode)
Kyuzo Kawabe
as British Couple (voice) (1 episode)
Masako Ikeda
as British Couple (voice) (1 episode)
Hirofumi Tanaka
as Driver (voice) (1 episode)
Nobuyuki Katsube
as Roberto (voice) (13 episodes)
Takeshi Watabe
as Detective (voice) (1 episode)
Shintarou Oohata
as Otto (voice) (1 episode)
Rei Sakuma
as Barbara (voice) (1 episode)
Takashi Taniguchi
as Gebel (voice) (1 episode)
Toshiko Koumura
as Woman (voice) (1 episode)
Miki Ono
as Nurse C (voice) (1 episode)
Takeshi Aono
as Heitmeyer (voice) (1 episode)
Mai Tsukada
as Young Anna (voice) (7 episodes)
Michio Hazama
as Schuwald (voice) (11 episodes)
Tomokazu Seki
as Karl (voice) (13 episodes)
Kyoko Hikami
as Lotte (voice) (9 episodes)
Toshihiko Nakajima
as Doctor A (voice) (4 episodes)
Atsuko Tanaka
as Margot (voice) (4 episodes)
Kazuko Yanaga
as Fake Margot (voice) (3 episodes)
Masaaki Tsukada
as Hols (voice) (1 episode)
Ichiro Nagai
as Dr. Reichwein (voice) (20 episodes)
Hikaru Tokita
as Young Karl (voice) (3 episodes)
Hiroshi Arikawa
as Richard (voice) (5 episodes)
Masato Hirano
as Kunz (voice) (3 episodes)
Kohsuke Meguro
as Martin (voice) (3 episodes)
Tomohiro Tsuboi
as Student (voice) (1 episode)
Keiichi Sonobe
as Jone (voice) (1 episode)
Sayaka Aoki
as Child B (voice) (1 episode)
Tomohisa Aso
as Johann's Collaborator (voice) (1 episode)
Yoshio Kawai
as Driver (voice) (2 episodes)
Roko Takizawa
as Woman (voice) (1 episode)
Minoru Inaba
as Ex-secretary (voice) (1 episode)
Ritsuo Sawa
as Old Man (voice) (1 episode)
Misa Watanabe
as Widow (voice) (1 episode)
Nobuaki Fukuda
as Chief of Surgery (voice) (2 episodes)
Motomu Kiyokawa
as Mr. Liebert (voice) (2 episodes)
Masuo Amada
as Man (voice) (1 episode)
For the best insights and data about the TV show Monster, visit our main Monster page.