Ok so not only does Bianca listed to 1792, she's totally read his novels and has no FLIPPING CLUE it's a pen name. Elle and Clare both want Bianca to meet the band so I'm obviously going to have to do that, though she will very quietly freak out about it.
Angie likely doesn't know him but wouldn't walk away from a conversation with him. Likewise for Roger.
Blaise has no idea he exists and that's probably a good thing.