As for guest stars, some wonderful ones in this batch. The most famous was probably James Coburn (who ends up being the murder victim) and the most famous of the accused was a very young Louise Fletcher.
Other notable names in the batch of shows today: Richard Deacon, Corey Allen, Arthur Franz, Edward Platt, Philip Abbott, John Hoyt, Virginia Christine, and Philip Ober (again; he was also in the season premiere wearing a toupee).