Anime “Snowball Earth” Set to Premiere in April 2026! Teaser PV, Visuals, and Main Cast Revealed!
The highly anticipated anime adaptation of “Snowball Earth” is officially set to hit the airwaves in April 2026, broadcasting across the Nippon TV network. Alongside this exciting announcement, a brand-new teaser PV, a striking teaser visual, detailed character visuals, the main cast, and additional staff information have all been unveiled!

About the Original Manga and Its Chilling Premise
“Snowball Earth” is based on the captivating manga by Tsujitsugu Yuujirou, currently serialized in Shogakukan’s “Gekkan! Spirits.” This acclaimed series has already surpassed 700,000 copies in circulation, drawing readers into a thrilling world of “SF x Kaiju x Robot Action.” The story unfolds on an Earth cloaked entirely in snow and ice, a desolate landscape aptly named “Snowball Earth.”
The narrative centers around Tetsuo, an incredibly shy boy whose only friend is the colossal robot, Yukio. Together, they are the “saviors” destined to confront galactic kaiju invading from the depths of space. After a decade passes since their final, humanity-defining battle, Tetsuo returns to Earth. However, the world he once knew has vanished, replaced by a frozen, icy expanse. With the memory of his promise to Yukio burning bright in his heart, Tetsuo embarks on a perilous journey through this unknown, frozen realm.

Teaser Visual Highlights and Character Introductions
Coinciding with the broadcast announcement, a stunning teaser visual has been released. It showcases the protagonist, Yabukama Tetsuo, standing bravely at the center, his posture radiating determination. Looming majestically behind him is his inseparable companion, the giant robot Yukio. This visual masterfully hints at the grand saga that awaits, starring a boy dubbed a “savior” and his loyal robotic partner. Tetsuo, famously described as a “boy with zero friends,” is poised to carve out a unique path in this narrative. Fans are eager to witness how this intriguing new protagonist will navigate his destiny and forge his story.


The character visuals for the main cast have also been revealed, giving us a closer look at the heroes and their companions who will inhabit this frozen world.




Unveiling the Thrilling Teaser PV
The very first animated teaser PV for “Snowball Earth” has also been released, offering a dynamic glimpse into the anime’s world.
The PV opens with Tetsuo and his best friend, the robot Yukio, engaged in a desperate, universe-spanning battle for humanity’s very existence against fearsome galactic kaiju. After this epic confrontation, Tetsuo makes his return to Earth. However, upon awakening from cold sleep, he is confronted with a horrifying sight: a completely transformed Earth, blanketed entirely in snow and ice. Why did Earth freeze over? Why are galactic kaiju, who should be in space, now on Earth? As these profound mysteries deepen, Tetsuo sets foot onto the frozen planet, marking the beginning of a brand-new chapter in this compelling story.


New Companions Emerge
The teaser PV also introduces two new companions who will join Tetsuo and Yukio on their journey: Nogi Aoi and Takimura Hagoromo. Fans are buzzing with anticipation about how these new characters will intertwine with the story and what their appearances will bring to this epic adventure.


A Stellar Lineup of Talented Production Staff
Further exciting staff information has been unveiled, promising an anime of exceptional quality. The intricate mechanic designs will be handled by Kin Sejun, an acclaimed animator with extensive experience and deep knowledge in mechanic design, having contributed to numerous robot anime (known for roles such as Mechanic Animation Director for Shin Evangelion Gekijouban and Animation Mechanical Design for Kidou Senshi Gundam GQuuuuuuX).
The creation of the formidable monsters is entrusted to Yanagi Ryuuta, renowned for his ability to draw monsters brimming with powerful presence (known for Monster Design in Gekijouban Sword Art Online: Ordinal Scale).

The series’ music will be composed by a talented trio: Katou Tatsuya, Tsutsumi Hiroaki, and YUKI KANESAKA. This magnificent team, previously responsible for the music of the TV anime Dr.STONE, will deliver a breathtaking soundtrack that perfectly captures the unique atmosphere of the “Snowball Earth” universe. With such a formidable assembly of accomplished staff across various fields, expectations are soaring for the immersive world of “Snowball Earth.”

Main Cast and Character Visuals
The main cast for the four central characters, along with their character visuals, has also been revealed. Yoshinaga Takuto takes on the role of Yabukama Tetsuo, the protagonist who is extremely shy yet also humanity’s “savior.” Hirakawa Daisuke voices Yukio, Tetsuo’s kind-hearted robot companion. Koshimizu Ami will play Nogi Aoi, a curious woman who manipulates burning kaiju. Finally, Tamura Konami is cast as Takimura Hagoromo, a highly skilled and diligent researcher. Exciting comments from each cast member, expressing their enthusiasm for the anime, have also arrived!
Voice Actor Comments
Yoshinaga Takuto (Voice of Yabukama Tetsuo)

“I was truly moved and captivated by Tetsuo-kun’s bravery, how he instinctively throws himself into danger for others, and his earnest efforts to overcome his communication difficulties. I absolutely wanted to be the one to play Tetsuo! I wanted to be by Yukio’s side! With that burning desire, I went into the audition… When I heard the results, I couldn’t help but roar with joy! I will pour my all into living in this world of ice, so that the anime’s charm can be fully conveyed to everyone!!”
Hirakawa Daisuke (Voice of Yukio)

“I’m Hirakawa Daisuke, and I’ll be playing Yukio. Robots! Kaiju! And their fierce battles!! How could my heart not dance with excitement?! And the human drama (and sometimes human-and-robot drama) that unfolds as people struggle to survive! How could my heart not tremble?! I will put all my emotions into this role, striving not to be outdone by the original manga’s brilliance and the amazing visuals!”
Koshimizu Ami (Voice of Nogi Aoi)

“It’s a tremendous honor for me to portray Aoi-san, who carries so much on her shoulders yet never loses her smile, at this point in my career. Each character harbors their own unique feelings, and their strength to never give up, no matter the circumstances, alongside their occasional moments of vulnerability, are beautifully depicted. I truly feel this is a work that makes you reflect on what it means to live. As a united cast team, we are determined to live through this world together!!”
Tamura Konami (Voice of Takimura Hagoromo)

“I’m Tamura Konami, and I’ll be playing Takimura Hagoromo in Snowball Earth. Being part of a production where we could read through the script together before recording, and receiving advice from senior voice actors, was such a fresh and invaluable experience. The battles against the galactic kaiju and the heart-pounding developments that demand your attention every second – please, let yourselves be swayed by both joy and despair!!”
Anime “Snowball Earth” Production Information
Cast
| Character | Voice Actor |
|---|---|
| Yabukama Tetsuo | Yoshinaga Takuto |
| Yukio | Hirakawa Daisuke |
| Nogi Aoi | Koshimizu Ami |
| Takimura Hagoromo | Tamura Konami |
Staff
| Role | Name |
|---|---|
| Original Creator | Tsujitsugu Yuujirou (“Snowball Earth” serialized in Shogakukan’s “Gekkan! Spirits”) |
| Director | Sakai Munehisa |
| Assistant Director | Iwata Takeshi |
| Series Composition | Murakoshi Shigeru |
| Character Design / Chief Animation Director | Kouno Toshiya |
| Mechanic Design | Kin Sejun |
| Monster Design | Yanagi Ryuuta |
| Art Director | Fujino Mari |
| Color Design | Noji Hironobu |
| CG Director | Motooka Hiroki |
| Motion Graphics | Ooshiro Takehiro (Production I.G) |
| Photography Director | Hayashi Kenta, Kodera Shouta |
| Editing | Nagasaka Tomoki |
| Music | Katou Tatsuya, Tsutsumi Hiroaki, YUKI KANESAKA |
| Animation Production | Studio KAI |
| Production | “Snowball Earth” Production Committee |
(C) Tsujitsugu Yuujirou / Shogakukan / “Snowball Earth” Production Committee






