Board Thread:DC's Legends of Tomorrow discussions/@comment-807326-20161202020559/@comment-25449165-20161202055916

FanMade Girl 20 wrote: Zeta1127,89thLegion wrote: I am pretty sure that was a little nod to Superman Returns. Well it would be awesome if Kara has a doppelganger on Barry's Earth since that would anser the question of do aliens also have doppelgangers.

Greg Berlanti did hint on having Power Girl appear on The Flash. In DC continuity, Power Girl is an alternate Kara from another Earth.