Main characters

Ren Homura (焔 レン, Homura Ren)

Voiced by: Yūsuke Kobayashi

The protagonist. He cannot seem to remember anything about his life in his old town, but when his memories temporarily resurface he becomes an ace Monster Strike player. His signature monsters are Oragon, Fenrir X the Monsterwolf (炎邪狼フェンリルX, Enjarō Fenriru Ekkusu) and Ryoma the Visionary (維新の奇跡 坂本龍馬, Ishin no Kiseki Sakamoto Ryōma, voiced by Taishi Murata) who Transcends into Hero of the Restoration, Ryoma (維新回天の英傑 坂本龍馬, Ishin Kaiten no Eiketsu Sakamoto Ryōma).

Aoi Mizusawa (水澤 葵, Mizusawa Aoi)

Voiced by: Lynn

Ren's classmate. After helping Ren out in his first real world Monster Strike battle, she begins to plan him joining her old Monster Strike team, having already given him a special ring that allows him to properly control the apparently real monsters. Her signature monsters are Fox Metal the Legend (狐穴のフォックスメタル, Koketsu no Fokkusu Metaru, voiced by Itaru Yamamoto) and Napoleon the Valiant (英雄 ナポレオン, Eiyū Naporeon, voiced by Eri Suzuki).

Akira Kagetsuki (影月 明, Kagetsuki Akira)

Voiced by: Kengo Kawanishi

Another of Ren's classmates, and one of Aoi's now former teammates at playing Monster Strike competitively. He is a perfectionist who cannot see Ren as replacing their former fourth teammate Haruma. His signature monster is Kamui (神威), and he also has John Manjiro (ジョン万次郎, Jon Manjirō, voiced by Daiki Hamano).

Minami Wakaba (若葉 皆実, Wakaba Minami)

Voiced by: Juri Kimura

Another of Ren's classmates and one of Aoi's former Monster Strike teammates. She is very airheaded, and is an otaku who often mimics and references popular anime and manga. When she is introduced, she is under the control of the mysterious entity possessing people to lead to real life Monster Strike matches. Her signature monster is Dead Rabbits, Ltd. (デッドラビッツLtd., Deddo Rabittsu Rimiteddo, voiced by Chinami Hashimoto and Yuna Yoshino) and she also has Al-mi'raj (アルミラージ, Arumirāji).

Oragon (オラゴン)

Voiced by: Jun Fukushima/Atsushi Abe

A monster that Ren summons from his phone after Monster Strike is installed and he is facing off against a man possessed by the evil entity. Oragon claims to be the Prince of the Monster World who has come to the human world to become stronger, but most people believe he is simply a creation of the game.

Haruma Kagutsuchi (神倶土 春馬, Kagutsuchi Haruma)

Voiced by: Daisuke Ono

Haruma was previously the fourth member of Aoi, Minami, and Akira's Monster Strike team until he moved out of Kaminohara for reasons they cannot remember. After Ren defeats Doom, it is hinted that Haruma is somehow responsible for his lost memories, as well as the memories of the others. They track Haruma down in Shibuya, only to be easily defeated in Monster Strike, resulting in his demand that they become the top players in Kaminohara before speaking to him, again. After they succeed, he still refuses, and it is revealed that he is being controlled by Memento Mori, the Spirit of War (木の闘神 メメント・モリ, Ki no Tōshin Memento Mori, voiced by Sayaka Ohara), one of the War Gods posing as his allegedly dead mother, so they seek to free him from her control. His signature monster is Underworld Rebel Lucy (反逆の堕天使 ルシファー, Hangyaku no Datenshi Rushifā, voiced by Yōko Hikasa).

Mana Livingston (Mana rivingusutonu)

Voiced by: Hisako Kanemoto (Season 2)

A Transfer Student from America becomes friends with the Main Cast and learns about Monster Strike Game, even obtaining her own ring and Partner.

Supporting characters

Taiyou Shirahama (白浜 太陽, Shirahama Taiyō)

Voiced by: Katsuyuki Konishi

A student from another homeroom in Ren and Aoi's middle school who appears to inform them about Minami's odd behavior. He seems to be aware of the mysterious figures leading people to be possessed. His signature monster is Loki, God of Mischief (狡知の神 ロキ, Kōchi no Kami Roki, voiced by Junichi Yanagita). He is secretly the number 1 player in all of Kaminohara, and is possessed by the War God Nirvana, Inferno of War (炎の闘神ニルヴァーナ, Honō no Tōshin Niruvāna, voiced by Takehito Koyasu).

Jun Nikaido (二階堂 純, Nikaidō Jun)

Voiced by: Shizuka Ishigami

Kaminohara Middle School's student council president. She is the 4th ranked MS player in the area and challenges the recently-formed MS Club members to determine the fate of their club. Her monster is Cherry Spirit Sakura (花ノ国の精 桜, Hana-no-Kuni no Sei Sakura, voiced by Ikumi Hayama).

Sanjo Takii (滝井 参仗, Takii Sanjō)

Voiced by: Subaru Kimura

A jock at Kaminohara Middle School who is turned on by being put down by women. He is the 3rd ranked MS player in Kaminohara and attacks the group in the local history museum's Roman art wing, battling them with Dark Usurper Zeus (天邪神ダークゼウス, Tenjashin Dāku Zeusu, voiced by Rikiya Koyama).

Akane Noda (野田 茜, Noda Akane)

Voiced by: Rie Takahashi

A student at Kaminohara Middle School who is obsessed with Minami's family cafe. She even goes so far as to take a part time job at a rival chain store and provide bad service to get people to go to the Wakaba family store. She is the 2nd ranked MS player and uses Melodious Snow Bow (森の歌姫 白雪姫リボン, Mori no Utahime Shirayukihime Ribon, voiced by Yurika Kubo).

Mariko Kobayashi (小林 茉利子, Kobayashi Mariko)

Voiced by: Haruka Yamazaki

One of Haruma's new MS teammates. She is dressed in Harajuku fashion. She uses the monster Alice, Queen of Wonderland (不思議の国の女王アリス, Fushiginokuni no Joō Arisu, voiced by Haruka Watanabe).

Shino Ichinose (一ノ瀬 志乃, Ichinose Shino)

Voiced by: Saori Ōnishi

One of Haruma's new teammates. She claims to have psychic powers that allow her to accurately predict the outcomes of her MS matches and often gets nosebleeds. Her monster is Himiko, Ruler of Yamatai (邪馬台国女王 卑弥呼, Yamataikoku Joō Himiko, voiced by Kaori Nazuka) who slide Evolves into Himiko, Queen of Wa (倭国の女王 卑弥呼, Wakoku no Joō Himiko).

Kaoru Owada (大和田 薫, Ōwada Kaoru)

Voiced by: Hiroki Takahashi

Haruma's other MS teammate. He likes to show off his muscles, and believes a well-developed upper body is key to victory. His monster is Romeo Possessed (デモンズ・ロミオ, Demonzu Romio, voiced by Ryouta Takeuchi).

Other characters

Genma Kagutsuchi (神倶土 玄馬, Kagutsuchi Genma)

Voiced by: Kenjiro Tsuda

Genma, otherwise known as "K", is the first champion of Kaminohara's MS Colosseum. He lures Ren and his friends to the colosseum to battle Izanami the Inviter (黄泉津大神 イザナミ, Yomotsu Ōkami Izanami, voiced by Asami Seto), who transforms into the corrupted Izanami Zero (イザナミ零, Izanami Zero). Genma is also possessed by one of the War Gods, Doom, the Tide of War (水の闘神ドゥーム, Mizu no Tōshin Dūmu, voiced by Kenta Miyake).

Karin Homura (焔 花梨, Homura Karin)

Voiced by: Rie Murakawa

Ren's little sister.

Mitsuki Homura (焔 三月, Homura Mitsuki)

Voiced by: Mamiko Noto

Ren's mother.

Dolph Wakaba (ドルフ若葉, Dorufu Wakaba)

Voiced by: Yasuhiro Mamiya

Minami's father. He runs the family café with Minami after. He dresses like a soldier but his personality far from tough and imposing as his appearance would suggest.

Lyra Kiskill (キスキル・リラ, Kisukiru Rira)

Voiced by: Kana Hanazawa

A mysterious young woman Ren and his friends encounter on their trip to Okinawa. She is actually a monster who has been captured by the American military during their tests on weaponizing Monster Strike.

Lieutenant Amanda Jensen (アマンダ・ジェンセン中尉, Amanda Jensen Chūi)

Voiced by: Yuki Kaida

A lieutenant in the U.S. Navy. She is Dolph's friend's daughter who shows Ren, Aoi, Minami, and Akira around Okinawa. She is secretly trying to free Lyra Kiskill from her superiors in the Navy.

Colonel James Styles (ジェイムズ・スタイルズ大佐, Jeimuzu Sutairuzu Taisa)

Voiced by: Shō Hayami

An American military officer working with the company NADTDcom to find a way to control Monster Strike monsters for the American military's gain. He uses a powerful monster named Oceanus.

Season 1 (2015-16)

Monster Strike 2 (2017)

Monster Strike 3 (2018-19)

Monster Strike The Movie

An anime film adaptation titled Monster Strike The Movie was released on December 10, 2016.^[10][11]

Monster Strike The Movie: Sora no Kanata

A second anime film adaptation titled Monster Strike The Movie: Sora no Kanata was released on October 5, 2018. Studio Orange animated the film.^[12]

Monster Strike the Movie: Lucifer - Zetsubō no Yoake

A third anime film adaptation title Monster Strike the Movie: Lucifer - Zetsubō no Yoake was slated to be released in June 2020, but was pushed to November 6, 2020 due to the COVID-19 pandemic.^[3]