Major spoilers below for anyone who hasn’t yet finished the entirety of The Umbrella Academy Season 2.
But Umbrella Academy’s finale revealed that Reginald actually wanted Kennedy to survive (which didn’t happen), and then fully confirmed that the character has actually been an alien this whole time.
Over the course of The Umbrella Academy’s awesome Season 2, audiences watched as the numbered Hargreeves siblings adjusted to their sudden relocation to Dallas in the early 1960s, though not exclusively in positive ways.