The Big O

The Big O

MyAnimeList - 7.57
Anilist - 7.2
Kitsu - 7.73


Average Rating

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.

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English: The Big O
Japanese: THEビッグオー
Type: TV
Episodes: 26
Status: Finished Airing
Aired: Oct 13, 1999 to Mar 27, 2003
Premiered: Fall 1999
Broadcast: Unknown
Producers: Bandai Visual
Licensors: Bandai Entertainment, Sentai Filmworks
Studios: Sunrise
Source: Original
Genres: Action, Sci-Fi, Mystery, Psychological, Mecha
Duration: 24 min per ep
Rating: PG-13 – Teens 13 or older
Resolution: 720p
Type: BD, Dual Audio


Yutaka Maseba – Producer
Kazuyoshi Katayama – Director, Episode Director, Script, Storyboard, Screenplay
Youta Tsuruoka – Sound Director
Tooru Kitahata – Episode Director
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Theme Songs

OP1: “Big-O!” by Rui Nagai (3-13)
OP2: “Respect” by Sahashi (15-20, 22-25)
ED1: “And Forever…” by Robbie Danzie with Naoki Takao


Gotta love those hammer elbows. Stylish and engaging, but some find the ending leaves a lot to be desired. Get the Batman Animated vibes.


A classic in my eyes. Roger is still one of the best anime protagonists and It’s like batman and gundam had a baby. A must watch.


This got me thinking man


Marries film noir and mecha excellently. Can get a bit convoluted (especially in season 2), but highly entertaining and introspective.


A very unique almost western mystery/mecha anime. It stumbles some but overall I’d say it’s very worth giving a try.


Fun giant robot show, then it gets weird. (also awesome)


Was promising as it had a nice “cool” vibe to it with the soundtrack and overall western feel. Then it becomes too confusing than it should


    Demon Alpha

    “When do you think people die? When they are shot through the heart by the bullet of a pistol? No. When they are ravaged by an incurable disease? No. When they drink a soup made from a poisonous mushroom? No! It’s when… they are forgotten.” – Dr Hiruluk, One Piece
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