The anime Kaiju No. 8 features a captivating cast of characters, many of whom serve in the Japan Defense Force. In this article, we delve into detailed profiles of the main characters from Kaiju No. 8—including their birthdays, heights, favorite things, and more—based on information from the manga and official social media updates.

Kafka Hibino / kaiju No.8

Name: Kafka Hibino / Kaiju No. 8 (JP: 日比野カフカ／怪獣8号)

Voice Actor: Masaya Fukunishi
Age: 32
Birthday: August 5
Height: 181 cm
Likes: Defense Force, curry, hamburger steak, alcohol, cigarettes (has cut back since rejoining the Defense Force)

32-year-old specialized Kaiju cleaner working for Monster Sweeper, Inc.. Over the years, he’s had to give up on his lifelong dream of joining the Japan Defense Force along with his childhood friend, Mina Ashiro, who is now the Captain of the Defense Force’s 3rd Division. It’s hard for him to accept his career trajectory has deviated from hers. After encountering Reno Ichikawa, a young aspiring Defense Force member, Kafka becomes determined to pursue his dream once again.

Mina Ashiro

Name: Mina Ashiro (JP: 亜白ミナ)

Voice Actor: Asami Seto
Age: 27
Birthday: June 17
Height: 169 cm
Likes: Cats (possibly all feline animals), sweets, baths, dried squid

The exceptionally popular and skillful Third Division Captain of the Japan Defense Force… and Kafka’s childhood friend. She excels in handling sniper weaponry and specializes in neutralizing large-scale Kaiju. At the young age of 27, she has already neutralized hundreds of Kaiju and has a promising career ahead of her.

Reno Ichikawa

Name: Reno Ichikawa (JP: 市川レノ)

Voice Actor: Wataru Katoh
Age: 18
Birthday: April 12
Height: 174 cm
Likes: Music, cooking, shonen manga

A motivated young man aspiring to become a member of the Japan Defense Force by any means necessary. He meets Kafka when he joins Monster Sweeper, Inc. as a part-time worker. He initially views Kafka with indifference, but later grows respect and loyalty towards him.

Kikoru Shinomiya

Name: Kikoru Shinomiya (JP: 四ノ宮キコル)

Voice Actor: Fairouz Ai
Age: 16
Birthday: September 7
Height: 157 cm
Likes: Kaiju extermination, tea, large dogs

The only daughter of the Japan Defense Force Chief, Isao Shinomiya. She is a highly regarded elite warrior that graduated from an overseas Neutralization University as their youngest valedictorian graduate. She boasts the strength of a Platoon Leader before even joining the Defense Force.

Soshiro Hoshina

Name: Soshiro Hoshina (JP: 保科宗四郎)

Voice Actor: Kengo Kawanishi
Age: Unknown
Birthday: November 21
Height: 171 cm
Likes: Reading, coffee, Mont Blanc cake, simple-minded people

The laid-back and loyal Third Division Vice Captain of the Japan Defense Force. His Kaiju slaying lineage dates back to the Muromachi period. As a skilled swordsman, his prowess surpasses even his Division Captain Mina Ashiro in neutralizing small to medium-sized Kaiju.

Iharu Furuhashi

Name: Iharu Furuhashi (JP: 古橋伊春)

Voice Actor: Yuuki Shin
Age: Unknown
Birthday: July 23
Height: 177 cm
Likes: Rock music, motorcycles, heroes, Gori Gori-kun (ice cream)

A member of the Third Division of the Japan Anti-Kaiju Defense Force. He’s a powerhouse valedictorian of Hachioji Neutralization Technical College. He hates losing and may appear rough and crude, but compassionate and brightens the scene wherever he goes.

Haruichi Izumo

Name: Haruichi Izumo (JP: 出雲ハルイチ)

Voice Actor: Keisuke Komoto
Age: Unknown
Birthday: October 14
Height: 178 cm
Likes: Classical music, snack foods

A member of the Third Division of the Japan Anti-Kaiju Defense Force. He’s the scion of Izumo Tech, the biggest anti-Kaiju weapon manufacture company in Japan. Haruichi is an elite excelling both in literary and military arts, who graduated valedictorian from Tokyo Neutralization University.

Aoi Kaguragi

Name: Aoi Kaguragi (JP: 神楽木葵)

Voice Actor: Shunsuke Takeuchi
Age: Unknown
Birthday: May 20
Height: 183 cm
Likes: Sports (basketball), historical novels, hamsters

A member of the Third Division of the Japan Anti-Kaiju Defense Force. Aoi was a rising star at Japan Ground Self-Defense Force, but chose to apply the Defense Force instead. He’s quiet and hard to read, but always calm and collected and values teamwork.

Konomi Okonogi

Name: Konomi Okonogi (JP: 小此木このみ)

Voice Actor: Sayaka Sembongi
Age: Unknown
Birthday: March 30
Height: 149 cm

Leader of the Third Division’s operator unit. An academic-type who has a scrupulous and inquisitive personality. Also serves as Hoshina’s aide.

Gen Narumi

Name: Gen Narumi (JP: 鳴海 弦)

Voice Actor: Koki Uchiyama
Age: Unknown
Birthday: December 28
Height: 175 cm

Although he is sloppy in his private life and lacks refinement, Gen Narumi possesses a natural talent for combat and is known as "Japan's strongest anti-kaiju weapon." He demands only results and strength from his subordinates.

Eiji Hasegawa

Name: Eiji Hasegawa (JP: 長谷川エイジ)

Voice Actor: Hiroki Yasumoto
Age: Unknown
Birthday: August 24

Eiji Hasegawa is the vice-captain of the First Division of the Japan Defense Force. Known for his integrity and discipline, he commands the trust of members across all divisions. As a reliable right-hand man to Gen Narumi, he serves as the spiritual backbone of the First Division.
Height: 210 cm

Rin Shinonome

Name: Rin Shinonome (JP: 東雲りん)

Voice Actor: Kana Hanazawa
Age: Unknown
Birthday: January 26
Height: 165 cm

A platoon leader in the First Division of the Japan Defense Force, Rin Shinonome is highly skilled in the use of heavy weaponry. While she may appear cool and composed at first glance, she is fiercely determined, driven by her goal of standing alongside Gen Narumi. Her competitive spirit fuels her relentless dedication and tireless effort.

Isao Shinomiya

Name: Isao Shinomiya (JP: 四ノ宮功)

Voice Actor: Tessyo Genda
Age: Unknown
Birthday: January 8
Height: 190 cm

The Director General of the Japan Anti-Kaiju Defense Force, and Kikoru’s father. He’s considered to be the strongest man in the history of the Defense Force, and that honor still applies today. He’s a perfectionist, and behaves coldly and is demanding toward his daughter Kikoru.

Kaiju No. 10

Name: Kaiju No. 10 (JP: 怪獣10号)

A Fortitude 8.3 Daikaiju. Just like Kaiju No. 9, he can speak human language. He is extremely aggressive. Attacked the Defense Force’s Tachikawa base with a flock of Wyvern-Type Kaiju.

Kaiju No. 9

Name: Kaiju No. 9

This humanoid Kaiju displays unprecedented traits for a Kaiju, such as understanding language and giving instructions to other Kaiju. The true identity of Kaiju No. 9 is still unknown.

Source : Kaiju No. 8 Official