Grandchild Speculation
Ok so my first thought was Jodie because why not. Also Roger trying to get her to do his bidding would just be amusing if she is actually as clueless as they make her out to be. It would also explain why she’s still there.
I feel like in the realm of characters we don’t have many left. Though maybe Lydia could be a candidate.
Also was Summer not originally a nepohire? In which case surely she’s linked to the Knights.