This article is about the Star Trek character. For the pediatrician, see Benjamin Spock. For other uses, see Spock (disambiguation).
Spock, commonly Mr. Spock (sometimes referred to as Spock, son of Sarek), is a fictional character in the Star Trek media franchise. Spock was first portrayed by Leonard Nimoy in the original Star Trek series, and also appears in the animated Star Trek series, a two-part episode of Star Trek: The Next Generation, eight of the Star Trek feature films, and numerous Star Trek novels, comics, and video games.  In addition, numerous actors portrayed the various stages of Spock’s rapid growth, due to the effects of the Genesis Planet, in the 1984 Star Trek film Star Trek III: The Search for Spock. In the 2009 film Star Trek, Nimoy reprised his role with Zachary Quinto, who depicted a younger version of the character, existing within an alternate timeline. Both reprised their roles in the 2013 sequel Star Trek Into Darkness and Quinto reprised his role again in 2016’s Star Trek Beyond. 
Spock serves aboard the starship Enterprise, as science officer and first officer, and later as commanding officer of two iterations of the vessel. Spock’s mixed human-Vulcan heritage serves as an important plot element in many of the character’s appearances. Along with Captain James T. Kirk and Dr. Leonard “Bones” McCoy, he is one of the three central characters in the original Star Trek series and its films. After retiring from Starfleet, Spock serves as a Federation ambassador, contributing toward the easing of the strained relationship between the Federation and the Klingon Empire. In his later years, he serves as Federation ambassador to the Romulan Star Empire and becomes involved in the ill-fated attempt to save Romulus from a supernova,  leading him to live out the rest of his life in the parallel timeline introduced in Star Trek (2009).
Spock’s backstory has been explained during the course of several episodes of Star Trek: The Original Series, the 2009 film Star Trek and the episode “Yesteryear” of the non-canon Star Trek: The Animated Series. Born to the Vulcan Sarek and the human Amanda Grayson, Spock has a troubled childhood due to his mixed heritage. On his homeworld, he was repeatedly bullied and tormented by full-blooded Vulcan children, who wished to incite the emotions of his human nature. 
For a time, he grew up alongside his older half-brother Sybok, until the older brother was cast out for rejecting logic.  In the episode “Amok Time”, it is revealed that Spock became betrothed to T’Pring (Arlene Martel) during his childhood. 
Sarek supported Spock’s scientific learning and supporting his application to the Vulcan Science Academy, as mentioned in “Journey to Babel”.  In the 2009 film Star Trek, Spock is seen rejecting his acceptance into the Vulcan Science Academy on the basis that they would never fully accept someone who was only half-Vulcan. Although this film set up the Kelvin timeline seen in this and later films, writer Roberto Orci stated that he felt that the actions were unaffected by the changes in this timeline and so would have occurred in the same manner prior to The Original Series.  Because Spock did not enter the VSA, and sought to join Starfleet instead, he did not speak to his father for the following 18 years. 
“The Cage” and the first season
Spock, as played by Leonard Nimoy, as seen in the pilots of Star Trek
Spock appeared as the science officer on the USS Enterprise in the first pilot for the series, “The Cage”. This was not shown on television at the time, but the events of the episode were shown in the two-part episode “The Menagerie” of the first season, and Spock’s previous 11 years of service on the Enterprise were described.  Spock was one of the members of the away team who joined Captain Christopher Pike (Jeffrey Hunter) on a mission to Talos IV in order to investigate a distress call. 
Spock did appear in the second pilot, “Where No Man Has Gone Before”, but this was broadcast initially as the third episode.  During the events of that pilot, Spock became concerned at the risk to the ship posed by Lieutenant Commander Gary Mitchell (Gary Lockwood) and suggested possible solutions to Captain James T. Kirk (William Shatner). 
The earliest appearance of Spock in the series as broadcast was “The Man Trap”, the first such episode.  When he needs to knock out an evil version of Kirk in “The Enemy Within”, he uses a Vulcan nerve pinch. Together with Chief Engineer Montgomery “Scotty” Scott (James Doohan) work together to rejoin the good and evil versions of the Captain, which had been split following a transporter accident.  During “Miri”, finds himself to be the only member of the landing party to be immune to the physical affects of the disease affecting human adults on the planet. However, he realises that he is probably a carrier and could infect the Enterprise if he were to return. Doctor Leonard McCoy (DeForest Kelley) manages to devise a cure, allowing the team to return to the ship. 
When Simon van Gelder enters the bridge armed with a phaser in “Dagger of the Mind”, Spock subdues him with a nerve pinch. He later conducts a mind meld with van Gelder as part of the investigation into the activities of the nearby colony. After the power to the colony is shut down, and a protective force field drops, Spock leads an away team to rescue Kirk.  Spock is reunited with Christopher Pike (Sean Kenney) in “The Menagerie”. Pike had been promoted to Fleet Captain but suffered an accident, resulting in severe burns and confining him to a wheelchair and restricting his communication to yes/no answers via a device connected to his brainwaves. Spock commits mutiny and directs the ship to travel to Talos IV, a banned planet. He recounts the events of “The Cage” under a tribunal to Kirk, Pike and Commodore Jose I. Mendez (Malachi Throne). As the Enterprise arrives at the planet, Mendez is revealed to be a Talosian illusion. At the same time, the real Mendez communicates from Starfleet, giving permission for Pike to be transported to the planet, and all charges against Spock are dropped. 
Spock with his parents, Sarek and Amanda
While the Enterprise is under threat in “Balance of Terror”, Spock is accused by Lieutenant Stiles (Paul Comi) of knowing more about the Romulans than he admits when the alien’s similar physical appearance is revealed. Spock hypothesises that they are an offshoot of the Vulcan race. He saves the Enterprise, manning the phaser station and saves the life of Stiles in the process.  Spock leads a landing party on the shuttlecraft Galileo in “The Galileo Seven”, which is damaged and pulled off course and lands on the planet Taurus II. Lieutenant Boma (Don Marshall) criticises Spock’s fascination with the weaponry of the natives after the death of Lieutenant Latimer (Rees Vaughn) at their hands. After Scotty uses the power packs of the party’s phasers to supply enough energy to get the damaged shuttle back into orbit, Spock decides to dump and ignite the remaining fuel to attract the attention of the Enterprise. The procedure is successful and the crew on the shuttle are rescued. 
Spock is reunited with Leila Kalomi (Jill Ireland) in “This Side of Paradise”; after joining an away team to the planet Omicron Ceti III. After being affected by planet spores, Spock begins showing emotion and re-initiates his romantic liaison with Kalomi. The impact of the spores on him are cured after Kirk goads him into anger, and once freed of the effects, Spock is able to initiate a solution which cures the rest of the crew.  Spock attempts to mind meld with a non-humanoid Horta in “The Devil in the Dark”, having initially suggested that Kirk should kill the creature. Following a second mind meld, Spock relays the history of the Horta and is able to create peace between the aliens and a nearby colony.  Both Spock and Kirk undertake guerrilla warfare against the occupying Klingon forces on the planet Organia, prior to the establishment of the Organian Peace Treaty in “Errand of Mercy”.  To restore the timeline, he travels with Kirk back to 1930’s New York City in “The City on the Edge of Forever”. He uses technology of that period to interface with his tricorder over the course of the weeks they spend in the period before witnessing Edith Keeler (Joan Collins) death. 
Season two and three
In the premiere episode of the second season, “Amok Time”, Spock begins to undergo pon farr, the Vulcan blood fever, and must undergo a ritual mating in the next eight days or die. Kirk disobeys Starfleet orders and takes the Enterprise to the planet Vulcan so that Spock can undergo the mating ritual. When they arrive, he is reunited with T’Pring (Arlene Martel). She wishes to be with Stonn (Lawrence Montaigne), a full-blooded Vulcan, instead. She demands the ritual kal-if-fee fight instead, and selects Kirk as her champion, who unknowingly agrees to a fight to the death with Spock. McCoy convinces T’Pau (Celia Lovsky) to let him inject Kirk with something to alleviate the issues with Vulcan’s thinner atmosphere and make the fight fair. The fight begins, and Spock gains the upper hand, garroting Kirk and killing him. McCoy orders an emergency transport directly to sickbay, while Spock is told by T’Pring that it was all a game of logic which would let her be with Stonn no matter the outcome. No longer feeling the effects of the pon farr, Spock returns to the Enterprise where he discovers that McCoy had injected Kirk with a paralyzing agent which merely simulated death and that the Captain was still alive. 
During the course of the encounter with the Nomad space probe in “The Changeling”, Spock undertakes a mind meld with the machine. Kirk stops the meld when he realises that Spock’s personally starts to be changed by the contact.  Following a transporter accident which transports Kirk, McCoy, Uhura and Scotty to a Mirror Universe and swaps them with their counterparts in the episode “Mirror, Mirror”, they encounter a different version of Spock. Sporting a beard, he grows suspicious of the activities of the suddenly changed personnel and under Starfleet orders, attempts to kill Kirk. Mirror-Spock is knocked unconscious, and is treated by McCoy while the others head to the transporter to attempt to return to their universe. Spock awakes and mind melds with McCoy to discover why Kirk did not have him killed. Discovering what took place, he agrees to help them return and as he mans the transporter controls, Kirk implores him to take control and save not only the ship but his Terran Empire from implosion at the hands of tyrants. The switch is once again successful, and the crew members return to their relevant universes. 
The Motion Picture and the film series
At the beginning of Star Trek: The Motion Picture (1979), Spock is no longer in Starfleet, having resigned and returned home to pursue the Vulcan discipline of Kolinahr. Spock is unable to complete the Kolinahr ritual after he senses the coming of V’ger, and rejoins Starfleet to aid the Enterprise crew in their mission.  Spock, promoted to captain, is commanding officer of the Enterprise at the beginning of Star Trek II: The Wrath of Khan (1982).  At the film’s end, he transfers his “katra” – the sum of his memories and experience –to McCoy, and then sacrifices himself to save the ship and its crew from Khan Noonien Singh (Ricardo Montalbán). 
The sequel, Star Trek III: The Search for Spock (1984), focuses on his crewmates’ quest to recover Spock’s body, resurrected by the Genesis matrix in the previous film. At the film’s conclusion, Spock’s revived body is reunited with his katra.  Spock is next seen in Star Trek IV: The Voyage Home (1986), which depicts his recovery from the after-effects of his resurrection. In the film’s final scene, he joins the crew of the newly commissioned USS Enterprise-A under Kirk’s command. 
In Star Trek V: The Final Frontier (1989), Spock and the Enterprise crew confront the renegade Sybok, Spock’s half-brother.  Star Trek VI: The Undiscovered Country (1991) reunites the Enterprise crew on a mission to prevent war from erupting between the Federation and Klingon Empire. Spock serves as a special envoy to broker peace with the Klingons after a natural disaster devastates their homeworld.
Star Trek: The Next Generation
Spock appears in “Unification” (1991), a two-part episode of Star Trek: The Next Generation. Set 75 years after the events of The Undiscovered Country, the episode focuses on Federation Ambassador Spock’s attempt to reunite the Romulans with their Vulcan brethren. Filming of The Undiscovered Country overlapped with production of this episode, and the episode references Spock’s role in the film.
The Kelvin timeline
Main article: Star Trek (film)
Zachary Quinto as Spock in the 2009 Star Trek film
Spock’s next appearance in the live action Star Trek franchise is the 2009 Star Trek film. Nimoy was given approval rights over Spock’s casting and supported Quinto’s casting. 
In the film’s flashback (set 19 years after the events of “Unification”, and as depicted in the comic miniseries Star Trek: Countdown  ), Ambassador Spock (Nimoy) promises the Romulans he will use Vulcan technology to save them from a rogue supernova that threatens to destroy their Empire. He pilots an advanced starship equipped with red matter, a powerful substance able to create artificial black holes. The mission is only partially successful, and in the aftermath Spock is pursued into the past by Nero (Eric Bana), a Romulan driven mad by the loss of his homeworld and family, setting into motion the events of the film.
In the film’s opening act, Nero’s ship emerges in the year 2233, and through its interaction with the inhabitants, inadvertently creates an “alternate, parallel ‘Star Trek’ universe”. 
Twenty-five years later in the new reality, Spock’s ship emerges, and Nero captures him and the red matter. Stranded in the alternate past, the prime version of Spock helps the alternate, younger version of himself and Kirk (Zachary Quinto and Chris Pine, respectively) thwart Nero’s attempt to destroy the Federation.
The film also features Jacob Kogan in several scenes depicting Spock’s childhood, including his abuse at the hands of other Vulcan children due to his half-Human heritage, and his relationship with his parents (Ben Cross and Winona Ryder). The film also depicts Kirk and Spock’s initial clashes at Starfleet Academy, and the gradual development of their friendship based on shared mutual respect,  what the elder Spock calls “… a friendship that will define them both in ways they cannot yet realize.”  A major change in characterization from the primary timeline is alternate Spock’s involvement with alternate Uhura (Zoe Saldana), his former student. At the end of the film, the young Spock opts to remain in Starfleet while his older self stays in the altered universe to aid the few surviving Vulcan refugees, as Nero had destroyed Vulcan, Spock’s home planet.
Star Trek Into Darkness (2013)
Main article: Star Trek Into Darkness
In Star Trek Into Darkness, Spock Prime is described as living on ‘New Vulcan’ while the younger Spock remains aboard the Enterprise struggling with the loss of his homeworld, as well as his relationships with Uhura and James T. Kirk. Spock nearly dies protecting a planet from an active volcano, but Kirk breaks the Prime Directive and saves him. Spock Prime is contacted by Spock on the Enterprise, to find out details on Khan. Spock Prime initially reminds his alternate self that he will not interfere with the events in the alternate timeline. That being said, he then informs Spock that Khan was a dangerous man, and the greatest threat that the Enterprise ever faced in his own timeline, and warns that he is likely as dangerous in Spock’s alternate timeline as well. When asked whether Khan was defeated, Spock Prime answers that he eventually was defeated, but at great cost (referring to the events of Star Trek II: The Wrath of Khan). When Kirk contracts radiation poisoning and dies in front of Spock (a transposed parallel of events in the prime timeline where Spock dies in front of Kirk), an enraged Spock attempts to kill Khan to avenge Kirk before Uhura informs him that Khan’s regenerative blood can revive Kirk. Nearly a year later, Spock remains as Kirk’s chief science officer and executive officer as the Enterprise departs on its first five-year mission of deep-space exploration.
Into Darkness would be Nimoy’s final appearance as Spock Prime, as well as the last role of his career. He died in 2015, shortly before production began on Star Trek Beyond.
Star Trek Beyond (2016)
Main article: Star Trek Beyond
In Star Trek Beyond, Spock receives word that Ambassador Spock (Spock Prime) has died. Impacted by this, Spock later tells McCoy that he intends to leave Starfleet to continue Ambassador Spock’s work on New Vulcan. At the end of the film, Spock receives a box containing some of the personal effects of Ambassador Spock, and reflecting on an included photograph of the aged crew of the Enterprise from the series’s original timeline (circa Star Trek V: The Final Frontier) he chooses to remain in Starfleet.
Along with the late Anton Yelchin, Star Trek Beyond was dedicated to his memory.
Spock has been parodied by, and has also been the inspiration for, pop culture works in various media. Composer/keyboardist George Duke’s 1976 Solo Keyboard Album features two tracks which pay homage to Spock: “Spock Gets Funky” and “Vulcan Mind Probe”. Rock guitarist Paul Gilbert wrote the song “Mr. Spock” on his Space Ship One album. Swedish synthpop band S.P.O.C.K makes music heavily influenced by the Star Trek universe. Even Nimoy got in on the act; assuming the Spock character, Nimoy recorded a number of novelty songs, the first being “Highly Illogical”, in which Spock pointed out the foibles of human thought, such as relationships, automobiles, and greed. The second song, “A Visit to a Sad Planet”, was darker in tone and told the story of Spock visiting Earth in the future and discovering it had been ruined by war, violence, and environmental irresponsibility. According to comic book writer and editor Bob Budiansky, The Transformers character Shockwave was inspired by Spock.  Spock’s utilitarian perspective that “the needs of the many outweigh the needs of the few”  is cited in a legal decision rendered by the Texas Supreme Court.  Leonard Nimoy’s second-season Spock costume shirt was expected to sell at auction for over $75,000. 
Spock’s physical appearance in the Original Series episode “Mirror, Mirror” (1967) has itself spawned a trope of the “evil twin” archetype found in various fictional genres. In that episode, several members of the Enterprise travel to a parallel universe inhabited by evil versions of themselves. The parallel universe version of Spock is distinguished physically by his goatee.  Science fiction blog io9 said that Spock’s beard in the episode introduced “the best shorthand ever for evil parallel universe duplicates”. 
Examples of the evil goatee’s appearances in other media include Bender’s “evil twin” Flexo in Futurama and a 2009 episode of The Colbert Report featuring Stephen Colbert and Dan Maffei wearing fake goatees while pretending to be evil versions of themselves.  The name of progressive rock band Spock’s Beard is a direct reference to Spock’s goatee in this episode. 
In addition to television, feature films, books, and parodies, Spock has also been portrayed in fan fiction. Since 2004, the online fan production Star Trek: Phase II has continued the further voyages of the cancelled initial series. The fan-series’ creators feel “Kirk, Spock, McCoy, and the rest should be treated as ‘classic’ characters like Willy Loman from Death of a Salesman, Gandalf from Lord of the Rings, or even Hamlet, Othello, or Romeo. Many actors have and can play the roles, each offering a different interpretation of said character.” 
The fan series Star Trek: Phase II has featured three actors in the role of Spock. Spock was portrayed by Jeffrey Quinn for the pilot and first three episodes, by Ben Tolpin in episodes 4 and 5, and by Brandon Stacy in episodes 6 through 11. Stacy also served as a stand-in for Zachary Quinto in the 2009 Star Trek film. 
The independent online fan series “Star Trek Continues” has featured Todd Haberkorn as Spock since its inception in 2012 with three vignettes, six full episodes and at least two more planned to shoot.
“Spocking” Canadian $5 notes
There has been a practice of altering the portrait of Canada’s seventh prime minister, Wilfrid Laurier, on Canadian five-dollar notes to look like Spock. After the death of Leonard Nimoy in 2015, there was an increase in that practice. 
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