[@Savo] Oh, okay, I was confused by your usage of the word, "foil".  Perhaps a more accurate term might potentially be 'they "mirror" each other'?  Or perhaps not.  Anyway, I completely agree, that's what I meant by being surprisingly similar despite wearing different masks.  It's like at their cores, they're the same, and yet the way they deal with their situations and their own selves differentiates greatly.