DC Database

Sonia Sato is the Japanese superhero Judomaster, a member of her nation's superhero team Big Monster Action.

Judomaster was once a member of the American super-team the Justice Society, and fought with them against Gog.[1]

With Big Monster Action, the successor to Big Science Action, Judomaster was responsible for defending Japan, capturing and taming the kaiju monsters that threatened the nation.[2] With her team, she joined in a superhuman brawl in Washington, D.C. over Superman's perceived culpability for the deaths of Russian civilians.[3] In costume, Judomaster attended the funeral of her one-time JSA teammate Wildcat.[4]

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Justice Society of America member
This character has been a primary member of the Justice Society of America in any of its various incarnations. This template will categorize articles that include it into the "Justice Society of America members" category.