Well, I don't talk much to either of them, but there are two BD'ers I feel like talking about.
In my mind Rune is Marx... or at least, he looks like him. And he smokes pipe, so I guess he's also slightly hobbit-ish. So I guess Rune is a short, rather chubby but in a good way Marx.
Also, even though I believe I've never talked to her, The Ka is clearly your good ol' slightly bohemian painter. A look of absent-mindedness veils a really sharp mind and paint stains veil what otherwise would be a rather snappy attire

Yes, I always imagine The Ka as a cute painter.
Oh! and before I forget... Diamond is obviously Daffy duck in disguise. But she ain't fooling me!!