Liked this line from Dave Winer post about official show podcasts:

i don’t know or care about the actors. If they’re any good they disappear. Whodat?

Never thought it that way before, but he’s right: a good actor should disappear, much like how a good UI design should disappear while it’s being used. It’s the bad ones that call attention to themselves and break the illusion.

(Don’t generally want to compare acting to UI design, but hey! It’s what I know, and it works as an analogy).