Keroro Gunso☆ Reveals New Cast, Themes, and Streaming Dates

Keroro Gunso☆ has locked in its October 3 Japanese premiere, added five familiar human-side characters, and published the domestic streaming schedule that international fans should watch closely.

BN Pictures announced the next major details for Keroro Gunso☆ on September 14, 2026. The new information brings the long-running alien-invasion comedy closer to its October return with a second full promotional video, five additional cast members, opening and ending theme songs, and a Japan-market broadcast and streaming timetable.

What Was Announced

The second promotional video is the centerpiece of the update. It previews the Keroro Platoon in action alongside the human characters who anchor the series' everyday comedy. The video also gives the first public listen to both theme songs: ano's opening theme “Kirai no chi Suki!” and PURPLE BUBBLE's ending theme “Himitsu no Panorama.” These are newly written songs for the anime, according to the announcement.

The update adds five characters and voice actors to the previously announced Keroro Platoon cast. Yuki Sakakibara voices Fuyuki Hinata, Minori Fujidera voices Natsumi Hinata, Sumire Morohoshi voices Momoka Nishizawa, Hiiro Ishibashi voices Mutsumi Hojo, and Koko voices Koyuki Azumaya. Their arrival matters because these are not peripheral names in the premise: Fuyuki and Natsumi are the siblings whose household becomes Keroro's unlikely base on Earth, while Momoka, Mutsumi, and Koyuki are part of the wider school-and-friend circle that turns an invasion story into a domestic ensemble comedy.

The Japanese television premiere remains set for Saturday, October 3, at 9:30 a.m. Japan Standard Time on the six-station TV Tokyo network. The official schedule also lists AT-X beginning Monday, October 5, at 8:00 p.m. JST, with repeat broadcasts on Wednesday morning and Friday afternoon.

BN Pictures has also published a detailed domestic streaming plan. Subscription streaming is scheduled to start on October 3 at 10:00 a.m. JST on Hulu, U-NEXT, and Anime Hodai. A wider group of services, including ABEMA, FOD, J:COM STREAM, TELASA, d Anime Store, DMM TV, Disney Plus Star, Bandai Channel, and milplus, is scheduled to begin on October 6 at 10:00 a.m. JST. Transactional viewing is listed for the same date, while catch-up distribution begins on NicoNico Live and ABEMA on October 6 at 9:00 p.m. JST and on TVer on October 9 at midnight JST. The announcement notes that start times, availability periods, prices, and viewing windows may differ by service.

The music rollout is unusually close to the premiere. “Kirai no chi Suki!” is scheduled for an early TikTok release on September 15, a digital release on October 7, and a CD single on November 18. “Himitsu no Panorama” is scheduled for digital release on October 7. PURPLE BUBBLE is also due to make its major-label debut in October, making the ending theme a parallel introduction for a new band.

Why It Matters

This is more than a routine final promotional push. Keroro Gunso☆ is being positioned as a new start within the franchise's 20th-anniversary project, but the announcement keeps the core creative formula recognizable: a squad of extraterrestrial soldiers, a captured Earth household, and comedy built from the gap between grand military ambition and ordinary life. Confirming Fuyuki and Natsumi now clarifies that the rebooted television project is preserving the human relationships that make the premise work rather than presenting the Keroro Platoon in isolation.

The update also shows how the series is being rebuilt for a current television window. BN Pictures lists a new production team led by chief director Nobuhiro Kondo, director Satohiko Sano, series composer Toshimitsu Takeuchi, character designer Hatsue Nakayama, and composer Kan Sawada. The voice cast for Keroro, Tamama, Giroro, Kululu, and Dororo remains the foundation announced for the new series, while the newly revealed human-side cast fills out the world around them. That balance may help the project serve both returning fans and viewers encountering the franchise for the first time.

For the anime industry, the practical significance is the breadth of the Japanese launch plan. The title has a Saturday morning broadcast slot, an early subscription window, a large second wave of platforms, transactional options, and two catch-up services. That layered rollout could make the show easy to sample in Japan, but it does not by itself establish an international release. The official materials currently describe the streaming list as domestic, so overseas licensing remains an open question.

Context for International Fans

The clearest point for viewers outside Japan is that the confirmed dates are Japan-market dates. The October 3 television broadcast at 9:30 a.m. JST corresponds to 12:30 a.m. UTC. The first subscription streams at 10:00 a.m. JST correspond to 1:00 a.m. UTC. Because Japan is ahead of North America and Europe, the calendar date and local release date may differ for some viewers, and each service may apply its own regional access rules.

At publication time, the official announcement does not name a North American, European, Latin American, or other overseas distributor. It also does not confirm subtitles, dubs, or a global simulcast. International fans should therefore treat services such as ABEMA, TVer, and Disney Plus Star as entries in the Japanese schedule, not as a promise of access in every country. A platform may be available under a different name or may carry a different catalog by territory; the official service page for a viewer's country will be the decisive check.

The official Keroro site does provide a useful starting point for following updates: it links the television project, the official X account, and the official Keroro YouTube channel. Fans who want to hear the songs before the premiere can also watch the second PV, while those waiting for a legal way to watch the series abroad should look for a separate overseas-rights announcement rather than relying on the domestic timetable.

What Happens Next

The next concrete checkpoint is September 15, when the opening theme is scheduled for early release on TikTok. After that, the key dates are October 3 for the Japanese TV premiere and first subscription streams, October 6 for the broader platform rollout and catch-up services, October 7 for both digital theme-song releases, and October 9 for TVer catch-up distribution. The physical CD release of ano's opening theme follows on November 18.

What remains unconfirmed is just as important: the episode count, an international streaming partner, subtitle and dub plans, and any territory-specific release dates. Those details may arrive through the official anime site, BN Pictures, the rights holder, or a regional distributor. Until then, the September 14 update establishes a detailed Japanese launch but not a worldwide one.

Sources

• BN Pictures' September 14 announcement — the second PV, five added cast members, theme songs, and domestic broadcast and streaming schedule.
• Official Keroro Gunso☆ television site — the series overview, cast, staff, project links, and official video hub.
• Official broadcast and streaming page — Japan Standard Time listings, service names, and viewing windows.
• Official Keroro Channel second PV — the promotional video introducing the updated cast, story atmosphere, and theme-song previews.

Information was checked on September 15, 2026, at 6:40 a.m. JST.

Editorial note: This report is based on the primary sources linked above. Availability, schedules, and announcements can change; verify the latest details with the official source.