Hostile Takeover saw us get a glimpse into the past of some of the shows core characters. From learning that Cat Grant has another son, to seeing the close emotional bond between Kara and Astra, to seeing the revelation that maybe, just maybe, the truth behind Kryptons destruction isnt all that we were led to believe, many a secret was dug up. With these revelations and reveals, it poses the question as to what other murky secrets are lurking in the past of Supergirls key players.