History of character is unknown.
- Martian Physiology
- This version of the character is exclusive to the continuity of the television series Young Justice and its tie-in comic book series. It is an adaptation of J'onn J'onzz. The original character was created by Joseph Samachson and Joe Certa and first appeared in Detective Comics #225.
- J'onn J'onzz was voiced by Kevin Michael Richardson.
- He was born on Mars in 1876.
- Appearances of J'onn J'onzz (Earth-16)
- Images featuring J'onn J'onzz (Earth-16)
- Quotations by or about J'onn J'onzz (Earth-16)
- Character Gallery: J'onn J'onzz (Earth-16)
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|Justice League member|
This character is or was a member of the Justice League of America, or the Justice League in any of its various incarnations, sworn by a duty to act as guardians of America and the world by using their skills and/or superpowers to protect Earth from both interstellar and domestic threats.