|1st Appearance||Four Favorites #9|
|Publisher||Ace Magazines (Periodical House)|
|Country of origin||USA|
Captain Nippo was a non-powered, costumed Japanese agent who worked to defeat the Allied powers by any means necessary. Ruthless, murderous, self-serving and prone to occasional bouts of cowardliness when facing superior opponents, Captain Nippo was one of the more competent embodiments of wartime anti-Japanese stereotypes. Captain Nippo was a recurring opponent of Captain Courageous .
When World War II ended, Captain Nippo tried to expel the American troops from Japan, bringing him into conflict with the now non-powered Captain Courageous. But even though he and the American hero were now on equal footing in terms power, Captain Courageous still defeated him and brought him to trial.