Sutri, also known as Marsboy, was a teen superhero on the planet Mars who became a friend of Superboy.
History
As a boy, Sutri was exposed to blinding rays from a mysterious asteroid which endowed him with superpowers, and he decided to become a superhero for his planet.
Years later he was tasked with saving Mars by travelling to Earth and taking the fabled Sphinx of Giza. He and Superboy, who initially had a conflicted relationship, eventually teamed up, allowing Marsboy to take the secret of the Sphinx back to Mars.

A fateful decision
Later, Marsboy and Superboy exchange costumes and identities to substitute for each other on their respective worlds, but each one endangers the other's secret identity by doing so.
In his last known adventure, Superboy helps his old friend Marsboy catch a Martian crook, but Lana Lang blackmails Marsboy into a scheme to make the Boy of Steel jealous.
Powers and Abilities
Powers
- Unique Physiology
- Enhanced Senses
- Super Vision
- Telescopic Vision
- X-Ray Vision
- Super Vision
- Flight
- Invulnerability
- Superhuman Speed
- Superhuman Strength
- Enhanced Senses
Weaknesses
- Vulnerability to Ditanite: This substance affected Marsboy in a manner similar to the effects of Green Kryptonite on Kryptonians.
- Power Limitation: X-Ray Vision was unable to penetrate copper.
Notes
- This version of Marsboy, 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 event and later restored following the rebirth of the infinite Multiverse during the Dark Crisis of 2022–2023. Even though other versions of the character may have appeared, this information does not apply to those versions.
- Marsboy had blond hair in his first two appearances and brown hair in his third appearance.
Related
- 3 Appearances of Sutri (Earth-One)
- 3 Images featuring Sutri (Earth-One)
- Quotations by or about Sutri (Earth-One)
- Character Gallery: Sutri (Earth-One)
Footnotes