(written from a Production point of view)
Paul Robert Coyle is a freelance writer who was involved in the writing of three Star Trek episodes, two of which were produced. In 1973, Coyle wrote a first draft script of "Point of Extinction", an episode which was submitted but never developed for Star Trek: The Animated Series. Years thereafter, he wrote the story and co-wrote the teleplay (with Michael Piller) of the Star Trek: Deep Space Nine episode "Whispers". He later pitched the story concept for VOY: "State of Flux". He talks about writing "Whispers" in the Star Trek: Deep Space Nine Companion.
Coyle also wrote episodes of The Streets of San Francisco, Barnaby Jones, CHiPs, Jake and the Fatman, Superboy (which starred Salome Jens), Hercules: The Legendary Journeys and Xena: Warrior Princess.