Dr. Horrible's archenemy, a superhero who possesses super-human strength and near-invulnerability. Hammer is self-centered and enjoys harassing Dr. Horrible even when the situation does not warrant it.
Dr. Horrible's archenemy, a superhero who possesses super-human strength and near-invulnerability. Hammer is self-centered and enjoys harassing Dr. Horrible even when the situation does not warrant it.
