The Big O II
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Episode: 0 / 13
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Anime DetailsFINISHED

Format
TV series
Episodes
13
Episode length
24 min
Total watch time
5 h 12 min
Status
Finished
Aired
January 2, 2003 – March 27, 2003
Season
Winter 2003
Source
Original story
Studio
Sunrise
Original creator
Hajime Yatate
Music
Toshihiko Sahashi
Country
Japan
AniList score
73/100
Estimated watch time
5h 12m
⚡ 3 days at 5 eps/day

Tags & Tropes

Amnesia100%Dystopian85%Noir79%Philosophy79%Butler79%Real Robot77%Politics73%Male Protagonist70%Kuudere60%Primarily Adult Cast60%
TVFINISHED2003 WINTER7.3 / 10 AniList score

The Big O II

THEビッグオー (2003)• THE Big O (2003)
overview details

Synopsis

Continuation of The Big O. Notes: - Originally planned as a 26-episode series, low viewership in Japan reduced production to the first 13. - Positive international reception resulted in a second season consisting of the remaining 13 episodes; co-produced by Cartoon Network, Sunrise, and Bandai Visual.

Main cast & voice actors

Should you watch The Big O II?

Probably, if you enjoy action, mecha and mystery, especially stories with amnesia, dystopian, noir.

Reception is positive but mixed: 73/100 on AniList, with 57% of 1.7K ratings at 8/10 or higher. It's the #13 highest-rated anime of 2003.

Once people start, they tend to finish: only 1.7% of viewers drop it.

Watch The Big O first: this continues its story.

At about 5 h 12 min in total, it is a short commitment — a weekend binge.

Where to Watch Officially

A streaming link is not listed for this title yet.

Creators & key staff

Original creator
Hajime Yatate
Series composition
Chiaki Konaka
Series composition
Kazuyoshi Katayama
Character design
Keiichi Satou

Where it fits in the series

Full franchise watch order

If you like The Big O II

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The Big O II FAQ

How many episodes does The Big O II have?

The Big O II has 13 episodes of about 24 minutes each, roughly 5 h 12 min in total.

How long does it take to watch The Big O II?

About 5 h 12 min back to back. At two episodes a day it takes 7 days; at one hour a day, about 6 days.

Is The Big O II finished?

Yes. The Big O II has finished airing — the final episode aired March 27, 2003.

Is there a season 2 of The Big O II?

No sequel is listed for The Big O II as of October 2026.

What should I watch before The Big O II?

Watch The Big O first — The Big O II is a direct sequel.

Is The Big O II based on a manga?

No. The Big O II is an original anime story, not adapted from a manga or novel.

Who animated The Big O II?

The Big O II was animated by Sunrise and directed by Kazuyoshi Katayama.