|Alias(es)|| John Jones|
|Appeared in||Independence Day|
|Actor||Kevin Michael Richardson|
When J'onn J'onzz lost his family to a deadly invasion, he became the last Martian. After arriving on Earth to assist the heroes there against the invasion, he became known as John Jones as well as the super hero, the Martian Manhunter.
When Batman, Flash, Aquaman and Green Arrow decided it was time to take steps in which to induct their sidekicks Robin, Kid Flash, Aqualad and Speedy into the League, J'onn and Red Tornado were both present at their first visit to the Hall of Justice. He welcomed them inside and gave them a short tour, culminating in the library, and which point Speedy confronted the adult heroes about all the stuff that had been kept from them such as the orbiting satellite headquarters called the Watchtower. As Speedy stormed off, Green Arrow inquired if J'onn was glad that he didn't bring "you know who" along, which J'onn couldn't help but agree with.
After the sidekicks managed to defeat Blockbuster at Cadmus Labs, the League agreed that the kids had made an impressive team, and opted to turn them into the League's covert operative group. Seeing what the newly created Young Justice had accomplished, J'onn decided it was time to introduce them to Miss Martian.
- Super strength
- John Jones - Human identity.
- Martian Manhunter - Hero identity.
- Superman - Teammate.
- Batman - Teammate.
- The Flash - Teammate.
- Green Lantern - Teammate.
- Aquaman - Teammate.
- Green Arrow - Teammate.
- Miss Martian - Niece.
- Wonder Woman - Teammate.