Sgt. Frog fans, the little green invader is officially making noise again.
The official website for Shin Gekijōban ☆ Keroro Gunsō Fukkatsu Shite Sokkō Chikyū Metsubō no Kiki de Arimasu! — translated as New Sgt. Frog the Movie: The Earth Is in Mortal Peril as Soon as We Come Back! — has released the film’s full trailer and a new visual.
The big update: the trailer confirms more casting, while also previewing the movie’s theme song, "Kashippanashi Destiny" by ano. If you’ve been following recent anime music, ano showing up here gives the project a nice bit of current pop-culture energy, not just nostalgia bait.
SixTONES’ Jesse joins as two new Keron brothers
The new cast highlight is Jesse from idol group SixTONES, who will voice not one but two new characters: Aruru and Deruru.
Both characters are brothers from Planet Keron, and the official details suggest they have some kind of past connection to Sgt. Frog’s unit. That’s a pretty smart setup for an anniversary film: bring back the old squad, but give them new Keron-related drama instead of just doing a greatest-hits reunion.
For long-time fans, that matters because Sgt. Frog has always worked best when it mixes dumb alien invasion comedy with surprisingly deep franchise lore. One minute Keroro is plotting to conquer Earth, the next minute he’s basically just another otaku stuck doing chores. That contrast is the whole charm.
A new TV anime is also coming
The movie is not the only Sgt. Frog revival on the way. An all-new TV anime titled Keroro Gunsō ☆ is scheduled to debut in fall 2026.
There is one important distinction: the upcoming TV anime will feature a brand-new cast, while the summer 2026 film will still use the franchise’s existing cast. So if you grew up with the older voices, the movie is the one to watch for that classic feel. The TV version sounds more like a fresh reset for a new generation.
That split actually makes sense. In Malaysia and SEA, a lot of fans discovered older anime through Animax, DVDs, fansubs, or later streaming libraries. Sgt. Frog sits in that weird nostalgic zone where many viewers know the character design instantly, even if they never watched all 358 episodes. A movie with the existing cast gives older fans the reunion. A new TV cast gives younger viewers a cleaner entry point.
Why SEA fans should care
Sgt. Frog is not a tiny franchise. The earlier Sunrise anime, based on Mine Yoshizaki’s Keroro Gunsō manga, ran from 2004 to 2011 and produced five feature films. That’s a massive run, and honestly, 358 episodes is no small makan session.
Crunchyroll added the earlier TV anime to its catalog starting in 2021, so depending on local availability, SEA fans may have a way to catch up or revisit the series before the new projects arrive. Discotek has also been releasing the anime in SD Blu-ray sets, with seasons 5-7 released last year.
For Malaysian anime fans, this revival is interesting because it lands right in the current wave of older franchises returning with anniversary projects, remakes, and sequel films. Studios know nostalgia is powerful, but Sgt. Frog has a better shot than most because its comedy is built around parody, pop culture nonsense, and chaotic character energy — the kind of thing that still plays well if handled properly.
No Malaysia release details were announced in the source material, so for now, we wait for distributor or streaming news. But with a summer film, a fall TV reboot, ano on the theme song, and Jesse voicing two new characters, Keroro’s comeback is starting to look more serious than just a quick anniversary cash-in.
Source: Anime News Network