Choudenshi Bioman (1984)
The eighth Super Sentai series, following five Bio Particle-chosen heroes defending Earth from the mechanized Neo Empire Gear.
Choudenshi Bioman - Series Information
- Original Title: 超電子バイオマン
- First Air Year: 1984
- Last Air Year: 1985
- Type: TV Series
- Genres: Sci-Fi, Fantasy, Action, Adventure
- Episode Runtime: Average runtime per episode (20 minutes)
- Number of Seasons: 1
- Number of Episodes: 51
- Status: Ended
- Original Language: Japanese
- Spoken Languages: Japanese
- First Air Date: February 4, 1984 (South Korea - ALL)
- Networks: tv asahi
- Alternative Titles: Super Electron Bioman (US), Chōdenshi Bioman (FR), 우주특공대 바이오맨 (KR), Chōdenshi Baioman (JP)
- Production Companies: Toei Company, TV Asahi, Toei Agency
- Production Countries: Japan
Choudenshi Bioman - Plot
Five descendants of the people showered with Bio Particles by Bio Robots five centuries in the past have become Biomen. They transform with the Bio Brace and fight using their Super Electronic Brains on their masks. Their Bioswords are equipped with sword and gun modes.
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Choudenshi Bioman - Cast & Crew
Main Cast
- Ryōsuke Sakamoto
- Naoto Ôta
- Akito Osuga
- Sumiko Tanaka
- Yuki Yajima
- Michiko Makino
- Yoshiko Ohta
- Munemaru Kôda
- Hirohisa Nakata
- Strong Kongo
Writers
- Hirohisa Soda
- Kyōko Sagiyama
- Kunio Fujii
- Takeshi Narumi
- Yū Yamamoto
Choudenshi Bioman - FAQs
What makes Choudenshi Bioman historically significant in Super Sentai?
Choudenshi Bioman holds a landmark place in tokusatsu history as the eighth Super Sentai series and the first to introduce a female member as a core team member from the start. It also pioneered the use of a giant mecha formed from five individual vehicles, a concept that became a franchise staple.
What is Choudenshi Bioman about?
Five young people descended from ancestors exposed to Bio Particles centuries ago are chosen to become the Biomen, a superhero team tasked with defending Earth from the Neo Empire Gear. Armed with Bio Braces, Super Electronic Brains, and dual-mode Bioswords, they battle the mechanized forces of the villainous Doctor Man.
Why was Yellow Four replaced mid-series in Choudenshi Bioman?
Actress Yuki Yajima, who played Mika Koizumi (Yellow Four I), departed the series early due to reported contract disputes. Her character was written out by being killed in battle — a rare and dramatic move for the franchise at the time — and replaced by Jun Yabuki (Yellow Four II), played by Sumiko Tanaka.
Where can you watch Choudenshi Bioman today?
Choudenshi Bioman has limited official streaming availability in most Western regions. Fan-subtitled versions have circulated online for decades, and the series is available through select import physical media. Check JustWatch for the most up-to-date regional streaming and purchase options near you.
How many episodes does Choudenshi Bioman have?
The series ran for 51 episodes across a single season, airing on TV Asahi in Japan from February 1984 to January 1985. In addition to the main run, nine special episodes were produced, bringing the total content to 60 entries across the complete release.
Did Choudenshi Bioman influence the Power Rangers franchise?
Bioman is widely credited as a key influence on the global Super Sentai legacy that eventually gave rise to Mighty Morphin Power Rangers in 1993. Its team structure, mecha combat, and colorful hero design helped establish the template that Saban Entertainment later adapted for Western audiences, launching one of television's most enduring action franchises.
Who are the main cast members of Choudenshi Bioman?
The core cast includes Ryōsuke Sakamoto as Red One, Naoto Ôta as Green Two, Akito Osuga as Blue Three, Sumiko Tanaka as Yellow Four II, Yuki Yajima as Yellow Four I, and Michiko Makino as Pink Five. Munemaru Kôda portrays the primary antagonist Doctor Man, with Strong Kongo and Hirohisa Nakata rounding out the villain roster.
What are some shows similar to Choudenshi Bioman?
Fans of Bioman will likely enjoy other Super Sentai entries such as Dengeki Sentai Changeman (1985), Choushinsei Flashman (1986), and Choujuu Sentai Liveman (1988), which share the same action-packed team hero format. For a broader tokusatsu experience, Kamen Rider Kabuto and the long-running Power Rangers series offer comparable superhero thrills.
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