Sgt. Frog New Anime 2026: Kerokero Gunsō ☆ TV Series & 20th Anniversary Film

The staff for the Sgt. Frog (Keroro Gunsō) franchise announced on Monday, December 23, 2025, that an all-new television anime, titled Kerokero Gunsō ☆, will debut in fall 2026, and revealed a teaser visual. Additionally, the staff announced that the new TV anime will feature a brand-new cast, which will be announced later. The staff clarified that the existing cast in the franchise thus far will still star in the new 20th anniversary anime film project for the Sgt. Frog franchise that will open next summer, as previously announced. The announcement marks a significant milestone for the beloved franchise, which has been entertaining fans for over two decades. The new television anime represents a fresh take on the series, while the anniversary film will serve as a celebration of the original cast and the series' long history. Next summer's new anime film is titled Shin Gekijōban Keroro Gunsō: Fukkatsushite Sokkō Chikyū Metsubō no Kiki de Arimasu! (Sgt. Frog the Movie: The Earth is in Mortal Peril as Soon as We Come Back!). The film will feature the original main cast returning after 16 years, including Kumiko Watanabe as Keroro, Etsuko Kozakura as Tamama, Jouji Nakata as Giroro, Takehito Koyasu as Kururu, and Takeshi Kusao as Dororo. This provides longtime fans with a nostalgic return to the characters they know and love. Yūichi Fukuda, known for live-action Gintama, serves as general director and screenwriter for the film. Fumitoshi Oizaki, who served as character designer on the original Sgt. Frog anime and directed Romeo X Juliet, Etotama, Akuma Kun, and The Gorilla God's Go-To Girl, is directing the anime at Bandai Namco Pictures. Satoshi Koike, known for Etotama, Soul Eater Not!, and Princess Connect! Re:Dive season 2, is handling character designs for the film. The original television anime series based on Mine Yoshizaki's Sgt. Frog (Keroro Gunsō) manga ran from April 2004 to April 2011, spanning 358 episodes and spawning five feature films. A shorter follow-up flash anime titled Keroro aired in 2014 for 23 episodes. The series was produced by Sunrise and became one of the longest-running anime adaptations of its time. The story follows the Keroro Platoon, a group of frog-like alien invaders from the planet Keron. After their mission to conquer Earth (Pekopon) fails, the leader, Sergeant Keroro, ends up living with the Hinata family. Instead of world domination, he spends most of his time building Gundam models (Gunpla) and doing household chores. The series is famous for its extensive use of parody, particularly of Mobile Suit Gundam and other iconic anime, taking the "hostile alien invader" trope and turning it into a domestic comedy where the "conquerors" are lazy, hobby-obsessed, and entirely at the mercy of their human hosts. The series is known for its unique blend of comedy, science fiction, and slice-of-life elements. The alien frogs, despite their initial mission to conquer Earth, end up living with a human family and becoming part of their daily lives. The humor comes from the contrast between their grandiose invasion plans and their mundane, everyday activities. The series has been praised for its clever writing, memorable characters, and ability to balance comedy with occasional moments of genuine emotion. For international audiences, the original series is available for streaming on Crunchyroll and Amazon Prime Video (specific seasons), making the series accessible to a new generation of viewers. The streaming platform describes the anime as a comedy about an alien frog who abandons his mission to conquer Earth in favor of enjoying human life, complete with karaoke and household chores. Discotek Media licensed the anime for physical media release, and re-released the series on SD Blu-ray in 2021. Discotek's release of Sgt. Frog includes all 358 episodes in successive SD Blu-ray Disc volume releases by season, beginning in 2021. Discotek released seasons 5-7 last year, providing collectors with high-quality physical copies of the entire series. The physical releases have been well-received by fans who prefer to own their favorite series on disc. The original manga by Mine Yoshizaki began serialization in Monthly Shōnen Ace in April 1999. As of late 2025, the manga continues serialization and has over 34 compiled volumes. American manga publisher Tokyopop released twenty volumes of the original manga in North America before shutting its doors in 2011. The manga's popularity, combined with the anime's long run, has made Sgt. Frog one of the most recognizable comedy franchises in anime history. The announcement of both a new television anime and an anniversary film demonstrates the franchise's enduring popularity and the creators' commitment to bringing fresh content to fans while honoring the series' legacy. The decision to use a new cast for the television anime while preserving the original cast for the film creates an interesting dynamic: the new TV anime is positioned as a complete reboot intended for a new generation of viewers, while the film is part of the 20th-anniversary project designed to celebrate the legacy of the original anime, hence the return of the veteran cast to honor longtime fans. This dual approach ensures that there will be something for everyone, whether they're longtime fans of the original series or newcomers discovering Sgt. Frog for the first time. The new television anime, Kerokero Gunsō ☆, will debut in fall 2026, placing it in the Fall 2026 anime season. Unlike the movie, this new TV series features an all-new voice cast and is described as a "rebirth" of the story, returning to the origin of how Keroro and Fuyuki first met. The new TV anime is positioned as a complete reboot intended for a new generation of viewers, necessitating a fresh cast. The teaser visual revealed alongside the announcement provides a first look at what fans can expect from this new iteration of the series. While details about the new cast and specific story elements are still to be announced, the announcement has generated excitement among fans who have been waiting for new Sgt. Frog content. The 20th anniversary film, scheduled for next summer, will serve as a celebration of the franchise's history and the original cast's contributions. The film's title, which translates to "Sgt. Frog the Movie: The Earth is in Mortal Peril as Soon as We Come Back!," suggests a return to the series' comedic roots while maintaining the sense of urgency that made the original series so entertaining. As the franchise prepares for its next chapter, fans can look forward to both a fresh take on the series with the new television anime and a nostalgic celebration with the anniversary film. The dual announcement ensures that there will be something for everyone, whether they're longtime fans of the original series or newcomers discovering Sgt. Frog for the first time.