Young Zarl Vorne was rocketed from Atlantis on Earth by his scientist father. He landed on an asteroid named Juno, and was frozen in suspended animation for 10,000 years before being revived by natives.
Gaining superpowers similar to Superboy, he became a crimefighter.
One day, Superboy arrived on the asteroid, but due to his proximity, caused Power-Boy to weaken, forcing him to leave.
Similar to Superboy's.
- 2 Appearances of Zarl Vorne (Earth-One)
- 2 Images featuring Zarl Vorne (Earth-One)
- Quotations by or about Zarl Vorne (Earth-One)
- Character Gallery: Zarl Vorne (Earth-One)