Hal was among the founding members of the Justice League. While the team's actual first meeting is debated, Hal helped defeat Darkseid's invasion and participated in the subsequent battle with the alien Appellaxians, which resulted in them nearly being turned into trees before emerging victorious. The heroes, inspired by their victory, formed a team, christening it the Justice League, establishing a headquarters in the form of the Secret Sanctuary in Happy Harbor. One of their earliest foes was Starro the Conqueror
Following an encounter between Barry Allen and Jay Garrick, the Flashes of two heroic generations, the Justice Society of America fully came out of retirement to defeat the Crime Champions alongside their League sucessors. The two teams began to act together from this point forward to battle any threats too great for a single band of heroes, such as the Earth 3 Crime Syndicate, which included an evil version of Green Lantern known as Power Ring
Green Lantern (Avatar) has been suggested to play 1 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.