So you're the Justice League. You've got Superman, a guy who can fly into the sun and punch harder than Mike Tyson. You've got Green Lantern, who has magic jewelry that can make anything you ever dreamed of. You've got Batman, whose parents are dead. So why do they need a teenage beatnik who can't stop snapping his fingers?
Lucas "Snapper" Carr was the Justice League's resident hanger-on during the 1960s, when they were headquartered in the sleepy town of Happy Harbor, Rhode Island. Like many sidekicks, he was created as an identification character for the audience. Unfortunately, nobody identified him and he quickly gave away the location of the League's headquarters to the Joker before fading into obscurity.
Of course, nobody ever really goes away in comics, so there have been a few attempts to make people care about Snapper Carr again (including giving him superpowers), to no avail.
