Okay. To open, James McAvoy is one of my fave faces ever so expect Lia at least to stare a bit if she ever runs into him.
Ophelia is a student so may have met Kieran because you have to take some Lit classes always.
I'm pretty sure random encounters with anyone would be a lot of fun, and honestly I can almost see Liz (if she ever meets your siren) wanting to sort of help her focus herself more because they can do so much, seriously.