Captain Steroid is a comic book superhero in Calvin and Hobbes. Calvin said that he was keeping every issue of Captain Steroid because they were all numbered issue one and would be valuable in the future. Nothing is known about the Captain, except that his kidneys were punched out with an "I-beam" and he was bleeding profusely. Calvin claims Hobbes was shouting what was happening in the strip out loud, therefore spoiling the excitement of reading them. He presented the problem to his mom who thought that the comic books were too violent and attempted to take them away.
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