Powers: John Stewart’s power ring provides him with the ability for flight and limited invulnerability. John's ring is a weapon of the mind and powered by will, therefore only limited to the wearer’s imagination.
Abilities: John served in the military forces of the United States Marine Corps and is an expert sniper.
Comic Book: DC Comics Synopsis: A member of the Green Lantern Corps, John Stewart debuted in 1971, making history as the first African American character in DC Comics. Created by Dennis O’Neal and Neal Adams, he was originally chosen as a backup Green Lantern to then-current Green Lantern Hal Jordan. After Hal Jordan relinquished the title in the 1980s, he became Green Lantern full-time. Using the ring worn by all Green Lanterns, he can create anything that his imagination can drum up as well as the powers of flight and invulnerability. During and after his time in the Green Lantern Corps, he has become the first mortal Guardian of The Universe, leader of the peacekeeping troop the Darkstars, as well as a member of The Justice League. Off the page, his character has become well known due to his appearances in animated series, including “Justice League,” “Justice League Unlimited,” “Static Shock” and “Young Justice.” He is set to appear as a main character in the upcoming film “Green Lantern Corps.” (Source: www.cbr.com)