User blog comment:Summer.bradshaw/My thoughts on Targets: Beware spoilers!/@comment-3465526-20110615122229

Oh and "Mr. Carr" -- Lucias Carr voiced by Greg Weisman -- is "Snapper" Carr, the Justice League's "mascot" from the 1960's. He was sort-of a temp/intern who hung out in the cave and wrote down reports on each team's adventures to fill in the guys who weren't there (Justice League used to break up into little sub-teams like Aquaman & Wonder Woman for each mission). Famously, Snapper was the guy who let the Joker know where the headquarters was when he betrayed the team in 1970. Since we know the Joker was in the cave, and since Snapper is a resident of Happy Harbor (who seems to know the JL based on his significant look in "Welcome") it seems likely that some version of those events are part of Earth-16