Immune to Murder: The Last Episode?
So, I'm well aware that the series is long over, but I'm curious. I received a box-set of the entire series as a gift last Christmas and have watched it fairly often. Something didn't really strike until recently though. Was Immune to Murder the last episode aired? Watching that episode lately, I was rather struck by the somewhat jarring absence of Bill Smitrovich, Colin Fox. and R.D. Reid - aka, Inspector Kramer, Fritz, and Purley Stebbins.
If it was the end of the entire series, it's send off, and yet all three beloved and familiar faces were absent from that episode. There was "someone" playing Fritz at the end of the episode, but it obviously wasn't Collin Fox because they were careful to only show him from the shoulders down.
Does anyone happen to know why they might chose a story that featured none of these there characters for the last episode? Were the actors no longer available to play their roles or was Immune to Murder just a particularly famous Nero Wolfe story, worth passing up the last chance to show the cast together in order to make it the last one?