Angus Macfadyen!
While watching the movie I suddenly noticed the unmistakable (albeit MUCH younger) face of Angus Macfadyen. He even gets a closeup or two which confirmed it for me. I knew he worked on at least one other Ross Hagen movie (Murder on the Yellow Brick Road) but didn't see his name listed in the credits here. Then I noticed him credited as one of the production assistants.
Seems that makes this his first movie, both as cast and crew!
A lot of strange things happen in this world. Things you don't know about in Grand Rapids.