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The Big O 2001 BLU-RAY Cover
The Big O (THE ビッグオー) is a Japanese animated television series created by director Kazuyoshi Katayama and designer Keiichi Sato for Sunrise Studios. The writing staff was assembled by the series' head writer, Chiaki J. Konaka. The series aired between October 13, 1999 and January 19, 2000 in Japan. The English language version aired between April 2, 2001 and November 2, 2003.

English Voice Talent

Main Cast

Secondary Cast

Minor Cast

Additional Voices

Additional Voices (Uncredited)

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