(written from a Production point of view)
Harry "Doc" Kloor (born 28 April 1963; age 54) is a scientist, writer, producer, and director who wrote or co-wrote four episodes of Star Trek: Voyager. In 1994, he became the only person in the United States to earn simultaneous PhDs: one in physics and one in chemistry. 
Kloor's first contribution to Voyager was writing the story for the third season episode "Real Life". For VOY's fourth season in 1997, he co-wrote the teleplay for "The Raven" with Bryan Fuller. Kloor co-wrote the story for the next episode, "Scientific Method" with Sherry Klein. In 1998, during the fifth season of Voyager, he co-wrote the story for "Drone" with Bryan Fuller.
Kloor later produced, directed and wrote the computer animated film Quantum Quest: A Cassini Space Odyssey, which featured the voice talents of several Star Trek actors including William Shatner, Chris Pine, Brent Spiner, and Robert Picardo.