This Comic's Cast:

See, they got themselves a puppy. How nice.
As for Cornell not knowing the castle, there's two reasons for that:
One, he's not in charge of the castle anymore, so the castle will gains its form and power from Dracula, as he's back in control.
Two, with the continuity shift, there's absolutely no guarantee that the castle looks, at all, like it did before the two of them left. Hell, the likelyhood is that, outside of the two of them and their memories, it never happened at all.
Wacky, huh?
 
    

When evil spreads across the land, and darkness rises and the monsters roam. When the creatures of the night make beautiful music, and the things that go bump in the night go bump with greater enthusiasm. When the world is in peril and is in need of a hero...

These guys are, sadly, the best the world can hope for. These are the adventures of the heroes of CVRPG. They mean well, they try hard, and occasionally they do the impossible...

They actually do something heroic.