Mark Piper

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Dr. Mark Piper was a male Human Starfleet officer who lived during the mid-23rd century. He served in the sciences division aboard the under Captain James T. Kirk, during his historic five-year mission. 
In 2265, Piper served as both the ship's chief medical officer and life sciences department head.
In the latter capacity, Piper was present on the bridge when the Enterprise crew embarked on an exploratory expedition outside of the Milky Way Galaxy. He also introduced Doctor Elizabeth Dehner to Kirk as a recent transfer. 
After the ship's encounter with an exotic energy field at the galaxy's edge, Piper tended to lieutenant commander Gary Mitchell and Dr. Dehner, who were mysteriously affected by the barrier. When speaking with a recovered Mitchell in sickbay, he declared he'd never had a patient like him before, with perfect readings.
Kirk ordered Piper to allow only one medical officer in Mitchell's room at one time, while another monitored him on the dispensary screen.
Later, Piper accompanied Captain Kirk and a landing party to the surface of Delta Vega, where the crew was attempting to adapt the power packs of an automated lithium cracking station to regenerate the ship's warp engines. While there, Piper observed Lieutenant Mitchell, who had begun to manifest extremely powerful psychokinetic abilities as a result of his exposure to the energy barrier. 
Along with the rest of the landing party, Piper was knocked unconscious by Mitchell as he escaped with Dehner. After regaining consciousness, he revived Captain Kirk, who ordered the doctor not to revive Spock until after the captain had departed after Mitchell. 
Kirk further instructed Piper that should Kirk not report back within twelve hours, the Enterprise was to travel to the nearest Earth base at maximum warp, with Kirk's recommendation that the entire planet be subjected to a lethal dose of neutron radiation. ()
== Appendices ==
=== Background information ===
Piper was played by Paul Fix. The first draft of the script simply described him as the "Ship's Doctor" throughout, but was at one point addressed by Kirk as "Dr. Johnson".
The uniform Piper wore had one braid indicating an officer rank less than captain.
After the departure of John Hoyt (Phil Boyce in ), Mark Piper was temporarily intended to fill the vacancy of Star Treks regular doctor character. A casting recommendation from Director James Goldstone to Gene Roddenberry led to Paul Fix being cast as Piper. (Inside Star Trek: The Real Story, p. 75) The fact that Roddenberry, Goldstone and Casting Director Joseph D'Agosta discussed the regular doctor as being an old country doctor was a deciding factor in the casting of Paul Fix. (The Star Trek Interview Book, p. 118)
Ultimately, Gene Roddenberry was unsatisfied with the way Paul Fix portrayed the character, and believed something was missing from the role. (Inside Star Trek: The Real Story, p. 84) D.C. Fontana explained, "Gene wanted a somewhat younger, more active doctor. He didn't want an aging , he wanted definitely a younger, more vigorous doctor." (Starfleet Access for "Where No Man Has Gone Before", TOS Season 1 Blu-ray special features)
Writer Samuel A. Peeples was also unhappy about how Paul Fix played the doctor, later remarking, "In my opinion he was a little too old for the part [...] I just felt he wasn't right for the part." This was despite the fact that Peeples found Fix to have done "a good job" of playing the old country doctor that Piper was meant to be. In other words, Peeples felt the problem was more in how the character had been conceived. He went on to say, "The physical element, I thought, required every crewman of the USS Enterprise to be active. He had to be not only mentally alert, but the traditional images of a country doctor would hardly have fit the images of a man who would say, 'We've got an unknown disease, and there's a cure on this planet. Our only choice is to try it. It might kill you,' and I don't think Paul Fix's interpretation of the character would have been able to do that." In conclusion, Peeples agreed with interviewer Allan Asherman's assessment that Fix, in the role, was "distinctly twentieth century." (The Star Trek Interview Book, p. 118)
Due to Gene Roddenberry's dissatisfaction with the part, the character of Mark Piper was replaced – as the series' regular doctor – by Leonard McCoy (played by DeForest Kelley, who Roddenberry had been wanting to cast in the position since working on "The Cage"). (Inside Star Trek: The Real Story, pp. 75 & 84)
NBC's early-1966 series sales booklet (which was made when Piper was still considered to be a regular) gave this biography of the character (reprinted in Inside Star Trek: The Real Story):
:Chief Medical Officer Dr. Piper is the oldest and most experienced space traveler aboard the Enterprise. As head of the ship's Medical Department, Piper is responsible for the mental and physical health of the crew. His evaluation of the reaction of the men to the pressures of the intergalactic space travel and the strange flora and fauna encountered on the planets visited will have a vital bearing on the conduct of each mission.
=== Apocrypha ===
The character of Dr. Mark Piper also appeared in the novels Captain's Peril by William Shatner, et al. and Star Trek: Vanguard: by David Mack. Captain's Peril mentioned that as an infant, Piper was "bounced on the knee" of Jack Archer, presumably a relative of former Captain Jonathan Archer, if not the Captain himself.
In the novel Enterprise: The First Adventure, as Kirk assumed command of the ship for the first time from Captain Pike, Piper had been replaced by McCoy. However, McCoy was late reporting in from leave and Kirk tried to contact Piper to fill in, but couldn't reach him, either. McCoy finally reached a location with communications and reported in.
In the subsequent novel Strangers from the Sky, McCoy went on leave to deal with "personal matters" (his divorce), and Piper filled in temporarily, pending his retirement from Starfleet. Thus, Piper was aboard when the Enterprise explored the edge of the galaxy. In the novel Traitor Winds (set sometime between TOS and ), Piper was killed by traitors within Starfleet.
Star Trek II: Biographies incorrectly gives his first name as Paul.
=== External links ===
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Category:Humans
Category:Medical practitioners
Category:Starfleet sciences personnel
Category:USS Enterprise (NCC-1701) personnel