My attempts at adding credits in iMovie failed horribly, so instead I'm listing everyone here.
The bad news is that I'm almost certainly forgetting someone.
The good news is that it will be easier to fix here than on the video itself :-)
Listed by Twitternames, in order of appearance (again, let me know if I screwed any of this up)
samhey and jimray
WifeOfTJ and a very special appearance by The Boy.
sween and damselesque