In the final episode of The Boys, season 2, Victoria Neuman is revealed as the person who has the superpower to blow up people's heads left and right.
And we see her eyes turn milky white when she uses her power. But the question is:
Is there an official explanation?
According to showrunner Eric Kripke in answer to a similar question from TVLine it seems that the answer is YES!
TVLINE: I rewatched the congressional hearing scene to look for any clues or hints or to see if Victoria’s eyes changed, and they didn’t. So has she really been the one exploding all the heads this season?
KRIPKE: Yes, of course, she was. Her eyes were pulsing off-camera. But we tell everyone in Episode 1, if you go back after Raynor’s head explodes and they jumped in the van, Frenchie’s line is like, “Who do you know who can do this?!” and we cut to Victoria. She’s literally introduced with us saying like, “Here she is. This is the one who can do this.” Yeah, she blew up Congress.
Yes, Victoria Neuman’s eyes do turn white when she uses her superpower. This is confirmed in a brief scene from Gen V (The Boys spinoff) S01E07 “Sick”. Right after she makes someone’s head explode in front of her, you can see her eyes become milky white for a second.
Here’s a clip of that moment:
This is a very subtle and quick change, so it’s easy for her to conceal it from others. That’s why she was able to easily hide it when she blew up several heads during the hearing in The Boys S02E07. It was also a clever way to lead up to the big reveal in the Season 2 finale.
For a clearer view of the eye change, here's a high-resolution image:
