poniesforall has a theory that Chris Lowell was the unknown voice in the storage area in 3.20 'The Bitch Is Back'. (She also has a totally whacked-out conspiracy theory, involving Piz being recruited to get evidence — the sex tape — on Veronica. You'll have to ask her for the deets. It's too twisty for me...seriously. She's been warped by having to beta for me, I'm sorry to say.)
I present some evidence for your consideration. You'll have to get the sound files (short mp3's) from the upload site (they'll open in a new window). While you are waiting for the files (they're teeny-sized, btw), you can admire Percy Daggs III.
Sound file #1:
"I rarely wear clothes indoors."Sound file #2:
"Shut the door"

Now that you've got the sound files...
The highlighted portions in the sound application windows are the word 'door' in both selections.
"I rarely wear clothes indoors."

"Shut the door."

[
Poll #1339528]
Yes, I do have the ability to entertain myself endlessly.