I think Horatio might be the only Hamlet pup who's active? Even if I'm so lazy with him that he only barely qualifies for the name. Might be completely wrong, though.

Momiji has four canonmates who're apped, but he and Kyo are the only ones who are active in Bar, so he's almost a lonely canon-pup.

But Ganymede and Dahlia both have canon-company in spades, relative to the number of significant characters in their canon, so, they're quite happy.

As for new pups: I'm not apping anyone new until I start being good and giving my non-Momiji pups the Bartime they deserve. >.>