Maybe I shouldn’t be, this series definitely thrives in suspension of disbelief, but if Mark and Nolan have their powers from Viltrum, where do everyone else’s powers come from? Are humans just evolving to be superpowered very occasionally? Are there more alien species that are having children with humans? If so that opens up a whole raft of questions too.
Am I thinking about this too hard? I’ve only seen the show and have not touched the comics although I am easily peer pressured.
There are random explanations for some of the heroes as others have mentioned, but seriously just don’t think about it too hard. It only actually matters for like 3 characters.