I agree on what rodcorvo said, but I know why the two characters, Kevin and Ethan, suddenly disappeared. Its because they want to further their acting career. They might go on to be big stars, but taking things a step at a time. So they had to find replacements for them so they got Blair and Roger. But I think we should give Andrew Walker and Ryan Wilner who plays Blair and Roger a chance because they might improve over time. I still like radioactive, though, no matter what they change