Atom (Ray Palmer)

Ray Palmer is one of the most brillaint scientists on the Earth.

History
Ray Palmer first appeared in the aftermath of the Tornado Tyrant's rampage. He was able to reconnect the air elemental being (composed of the Tornado Tyrant and Tornado Champion entities) with the Red Tornado android body.

Palmer later appeared as a candidate for membership in the Justice League under his superhero identity of the Atom after the events following the dethroning of Mongul led to several members of the League to leave the team. As the Atom, Palmer had the power to shrink his size exponentially while maintaining his physical strength. He was granted membership by a majority vote.

One of his first actions as a Justice League member was to convince his team members to help his friend Wayne, a pizzeria owner, topple over a criminal pizza organization formed by several underground mutant animals. The creatures would order pizza and then sell and deliver it to people for much higher prices, beating up anyone who bought pizza directly from Wayne's Pizza instead of through them. Despite the inability to take the mission seriously, Booster Gold and Martian Manhunter were forced to go along with Atom and help. Atom's plan to take down the gang was to infiltrate their sewere base incognito, with Booster disguising as a pizza delivery boy, Atom hiding on the pizza while shrunk down, and Martian Manhunter being disguised as the pizza itself. They were able to defeat the gang of pizza-loving miscreants, thus saving Wayne's Pizza.

Atom then turned his attention to the newly-formed superhero team of younger heroes called Young Justice. Desiring to test the cohesiveness of the team, he snuck around their headquarters in his miniscule form, playing various pranks on them and would make it appear as if a fellow Young Justice member had done it. His efforts ultimately proved unsuccessful at causing much strife among the team, rather, many of his pranks actually backfired and brought the young heroes closer together.