Deva, not diva. There are four of them, but one is... offline at the moment. And one of them should answer if you place a message on the network specifically asking for them; they're kind of busy, so you might not get a response right away but you should get one sooner or later.

[Clu blinks in surprise.]

Oh! I thought you wanted actual pudding. And I'm a hacker, not a comedian, though I have been known to play a few pranks now and then.

As for your friend the Joker, I'm afraid he's probably not here. Most likely, he's still back where you came from. He might show up later, but there's no way to know for sure.