“Amnesiac Paradigm City's negotiator Roger Smith uncovers its 40-year mystery using mecha Big O.”
The Big O
THEビッグオー
Would You Love or Hate This?
AI-powered analysis tailored to your taste
Based on your preference for character-driven stories with layered emotional arcs, this title's exploration of identity and belonging would deeply resonate. The pacing mirrors series you've rated highly, and its thematic depth aligns with your appreciation for nuanced storytelling...
However, the slow initial episodes might test your patience given your history of dropping shows that don't hook you early. The art style shift in the middle arc could also be a concern...
Synopsis
Amnesiac Paradigm City's negotiator Roger Smith uncovers its 40-year mystery using mecha Big O.
Paradigm City, a city of amnesia and a place of belonging. It remains populated by forgotten pasts and the ruins of their labors due to a calamity 40 years ago. Shrouded in a fog-like mystery, it is up to people like Roger Smith to shine a light through the mist. Acting as a professional negotiator and suave agent, Roger is a self-tailored ladies man whose only love is for funeral black. However, as he gets deeply involved with his clients, what often starts as a simple negotiation evolves into Roger saving Paradigm from crime and peril. In the process, Roger stumbles even deeper into the untold folds of the city. As a rule, things are hardly ever as they appear. Serving as gray knight in a gray world, Roger is not without allies. By his side are Norman, a loyal and widely skilled butler, and Dorothy, a human-like android with deadpan snark. Together with the relic Big O, a jet-black mecha of gargantuan size and weight, they help Roger serve iron justice to Paradigm's lurking villains as he discovers the truth about 40 years ago.
What people say
Community consensus
Derived from 50 sampled reviews
What 50 viewers settled on.
Polarized
σ 1.91 · split reception
4.7 pts
Recommenders 8.9 · others 4.3
↓ 1.88
Running avg · Nov 2007 → Dec 2025
- 10 “Loved it! Classic Mecha Anime! (Personal Opinion) If you are into mecha animes I recommend that you give Big O a try!”
- 9 “This was an interesting anime from the start. First you think its about a negotiator in Paradigm city. But as the story continues you find out that it is actually about finding what life is really...”
- 10 “The Big O a classic mecha anime by Sunrise , Roger Smith is a Batman like character in this story , he out to unsolved mysterious, and battle giant monsters , this is a common Mecha trope , he also...”
Watch Order & Related
Explore the The Big O universe
Cast
See all →Trailers & videos
See all →Gallery
See all →If you stay for this, you'll stay for these
See all →The community pairs this with
See all →Made by
See all credits →Production slate
- Format 26 × 24′ eps × min
- Total runtime 10h 24m all episodes
- Aired Oct 1999 – Mar 2003 Fall 1999
- Source Tv media type
- Rated PG 13 - Teens 13 or older
- Ref. BS-0533 catalog
Produced by
- Bandai Visual Producer
Licensed by
- Bandai Entertainment Licensor
- Sentai Filmworks Licensor