It's interesting how they've managed to incorporate so much of Manchester Black's story and character elements from the comics without giving him superpowers. He's an antihero-turned-villain who argues that it takes lethal violence to stop the bad guys and that Super(person)'s methods won't cut it. And even without powers, they came up with some clever ways for him to restrain Supergirl -- and I loved how she got out of the Nth metal trap.
Lockwood is a real piece of work. I expected that the fact that his wife was almost killed by a human and saved by Supergirl would make him question his bigotry at least a little, but like most modern bigots, he just doubled down and refused to consider anything that might require changing his mind. That's frustrating.
I'm also disappointed in President Baker. He hasn't turned out to be a villain himself as I thought he might, but he's shaping up to be a superficial, poll-obsessed chief executive who bows to public hysteria over good policy. And that's disappointing for me because I like Bruce Boxleitner and don't like to see him playing an unlikeable character. Still, that was quite an interesting twist the story took at the end, with the demand that Supergirl reveal her identity. It's kind of odd that she'd be so hardline about it now, though, given how cavalier she's been about it in the past with the entire DEO. Although Supergirl being out of the DEO could be a nice change. Being a free agent is more of a conventional superhero role, and if they pursue that, it could be reminiscent of season 1 when Supergirl was working with James and Winn out of an abandoned office in CatCo.
The teaser for Elseworlds was unexpected and delightful. I think I'll talk about it in the crossover thread, since it has no specific connection to Supergirl.