Quick update - when the TinMan arrived for the 'callback', he was informed that he had actually already been cast, along with the woman playing 'the mother' (his wife). They were there to assist in the casting of the rest of the ensemble.
AND, this is actually going to be given the full 22-minute, 3-camera treatment to be shopped to the networks. SO, not only will he get that exposure, but he'll also get the 3-camera experience - and footage for his reel.
Life is good right now

Because, even though I don't talk about it a lot, my own little business venture has exploded - big time. So, the rewards are looking mighty fine!