My absolute favorite scene is between Barnabas & Willie. Barnabas is going on about how awesome it is to be immortal, young forever; untouched by age, untouched by anything.
Willie says, Except maybe loneliness. And as he says it, his eyes are darting back and forth, as if he’s expecting Barnabas to smack him one for saying it. But Barn just goes out the door, stops and thinks about it. This is Barnabas and Willie at their very best.