Torin Thatcher also appeared with DeForrest Kelley in The Return of the Archons (1967). In addition to Star Trek regulars Leonard Nimoy and George Takei, who had guest shots on Perry Mason, the Star Trek episodes also featured Perry Mason alumni Harry Townes, Jon Lormer, Karl Held, Leslie Parrish and Kathie Browne.
DeForest Kelley's only guest appearance in the series.
The first of Gerald Mohr's four guest appearances in the series.