I was very surprised to find out this actress is in Mulholland Dr. She plays "Carol", who I just can't locate or remember from the movie although I may have seen it about 50 times.

She had a pretty decent role on "Heroes", playing Matt Parkman's wife, from whom he ran away leaving not only her alone, but also a  kid.

Here she is, for visual reference:

"Did they scoff the whole damn Smörgåsbord?" (Audrey) 

"Gimme a donut!" (Coop)

Oh my God, how could I have been so blind. She's the singer at the audition.What a dumbass!

"You're so cruel to me! Don't you forget me, I'm the girl who's playing this part!"

"Did they scoff the whole damn Smörgåsbord?" (Audrey) 

"Gimme a donut!" (Coop)

I noticed "Dan" in Ghost World - he's the clerk in the video store - and Twister. Very small parts. It's a pity because he's powerful.

Anyway, I'm glad that I have pointed Elizabeth out. She's memorable in Mulholland Dr. and it's good to know that she's been almost a regular during heroes season 1 and returned for an episode in season 2. 

"Did they scoff the whole damn Smörgåsbord?" (Audrey) 

"Gimme a donut!" (Coop)