Zodiac Master was the alias of a costumed criminal who worked in Gotham City. He started his criminal career by predicting accidents in order to gain the trust of several gangsters and criminals. He didn't reveal that he had rigged the accident and soon, he was confronted by the local heroes Batman and Robin, who managed to infiltrate Zodiac Master's hideout. The masked criminal managed to fight them off using several weapons based on the zodiac signs, but he was eventually outmatched and captured.
- This version of Zodiac Master, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- 3 Appearances of Zodiac Master (Earth-One)
- 1 Images featuring Zodiac Master (Earth-One)
- Quotations by or about Zodiac Master (Earth-One)
- Character Gallery: Zodiac Master (Earth-One)