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Multiple realities
(covers information from several alternate timelines)
Spock (2387)
Spock (2387)
Full name: S'chn T'gai Spock
Species: 1/2 Human / 1/2 Vulcan
Gender: male
Height: 6'1"
Weight: 180 lbs (2280s)
Eye color: blue
Hair color: white (previously black)
Homeworld: Vulcan
Birth place: Shi'Kahr
Born: 2230 (stardate 2230.06)
Status: active (2285 (reborn that same year))
Affiliation: Federation, Starfleet
Rank: admiral
Rank insignia:
Rank insignia
Occupation: Starfleet officer
Serial number: S 179-276 SP
Assignment: first officer, USS Enterprise-E (2376)
Father: Sarek
Mother: Amanda Grayson
Marital status: married
Spouse(s): Saavik
Children: Zar
Played by: Leonard Nimoy

S'chn T'gai Spock was a Human/Vulcan hybrid who became one of the most distinguished and respected figure in the United Federation of Planets in his lifetime, spanning the 23rd and 24th centuries. (TOS: "This Side of Paradise", "Journey to Babel"; Star Trek)

As a Starfleet officer for most of his life, Spock served aboard the USS Enterprise as science officer under both Christopher Pike and James T. Kirk, before eventually arising to be her commanding officer during her tenure as a Starfleet Academy training vessel. He later served aboard the USS Enterprise-A, before attaining command of the USS Intrepid II. (TOS: "The Cage", "Where No Man Has Gone Before"; Star Trek II: The Wrath of Khan; Star Trek IV: The Voyage Home; Pocket TOS: Vulcan's Forge)

In the 24th century, Spock retired from Starfleet and became a celebrated ambassador and advisor to the Federation's leadership. In 2368, Spock "defected" to Romulus in order to work with the reunification movement to bring Romulans and Vulcans back together. He later disappeared in 2387 after saving the Federation from the supernova that destroyed Romulus, causing an alternate reality. (TNG: "Unification II"; Star Trek)


Early life


S'chn T'gai Spock was born in the city of Shi'Kahr on planet Vulcan on stardate 2230.06. The son of Sarek, a Vulcan diplomat, and Amanda Grayson, a Human school teacher, Spock was named after one of Vulcan's society builders on the suggestion of his father. (Star Trek; TOS: "This Side of Paradise"; TAS: "Yesteryear")

For a time, Spock grew up alongside his elder half-brother Sybok, until he was ostracized for rejecting Vulcan's principles of logic. (Star Trek V: The Final Frontier)

During his early years, Spock experienced a number of difficulties relating to his mixed parentage, as he was often tormented by other Vulcan children, who would tease and attack him in order to provoke emotional responses. Sarek was ambivalent at his son's nature, but Amanda watched helplessly as Spock stood stiff-lipped as he faced his tormentors, knowing that his "Human-half" was hurting. (TOS: "Journey to Babel"; Star Trek V: The Final Frontier)

In 2237, at the age of 7, Spock decided to undertake the kahs-wan maturity trial in the Vulcan wilderness in an attempt to prove himself, despite the fact that he would be doing so prematurely and without parental consent. I-Chaya, Spock's pet sehlat accompanied his master, and subsequently defended him from an attack by a venomous le-matya. The intervention of an elder cousin, Selek, saved Spock from the le-matya, but I-Chaya was mortally wounded. Faced with the choice of painfully prolonging I-Chaya's life or giving him a peaceful release, Spock opted for the logical option of peaceful release. (TAS: "Yesteryear")

Later that year, Spock was betrothed to T'Pring, in accordance with the traditional Vulcan marriage process. (TOS: "Amok Time")


Spock received his first instruction in the use of computers by his father, setting him on a path of a scientific career and eventually attending Makropyrios, one of the finest universities in the Federation, where he studied advanced physics for a year. During his time there, Spock was one of a small group of students who were chosen to attend an intensive seminar held by research Professor Georges Mordreaux. Spock also had several discussions with Doctor Emanuel Tagore, but never sought to enroll in any of his classes. (TOS: "Journey to Babel"; Pocket TOS: The Entropy Effect, The Final Reflection)

In 2249, Spock made frequent visits to the Vulcan Science Academy where his father worked as an astrophysicist. During these visits, Spock came into contact with Nasat Lieutenant B6 Blue, and he soon developed a wanderlust for space after hearing the Nasat's tales of "black holes, shining nebula and the Efrosian frost-fields", although Spock would later claim that his eventual decision to join Starfleet grew out of its scientific research rather than because of any sense of adventure. (Pocket TOS: Constellations: "Devices and Desires")

Against his father's wishes that he completes his instruction at the Vulcan Science Academy in the family tradition, Spock expressed a desire to join Starfleet. The argument finally came to a head later in 2249 with Spock's final decision, causing a rift that kept them from speaking to each other for 18 years. (TOS: "Journey to Babel")

Starfleet career

Starfleet Academy

Spock as a Starfleet cadet.

In 2249, Spock began his Starfleet training at Starfleet Academy and was admitted unto the accelerated Vulcan course which saw him complete his studies within two years, majoring in sciences and computer technology. (Pocket TOS: Vulcan's Glory)

During his time attending the Academy, Spock was a classmate of Armand St. John for a brief period. The two became friends and St. John developed a kind of respect for Spock, telling him that he was the only person in the Federation capable of understanding his genius. Despite the friendship, the two quarreled frequently until St. John was expelled after one of his scientific experiments caused extensive damaged to the campus. (TOS: "All of Me")

Following his graduation from the Academy, Spock had come top of his year in astrography, comparitive xenobiology, semiotics, quantum mechanics, warp engineering and four other disciplines which impressed many senior officers, including Robert April. (EV: "Flesh of My Flesh")

Vulcan's Glory states that Spock graduated from the Academy at the age of 19 which would place it in 2249. However, the Star Trek Chronology and several other sources state that Spock entered the Academy in 2249. Therefore his Academy history and later service history have been condensed down from the five years between his graduation and assignment to the Enterprise to between 2252 and 2253.

Training cruises

Before being commissioned as an officer, Spock was obliged to participate in the required one year of cadet working cruise aboard various starships, where he was granted the rank of acting ensign. (Pocket TOS: Vulcan's Glory)

On one such voyage, Spock was assigned as an assistant science officer aboard the USS Enterprise, under the command of Captain Robert April with Science Officer N'a'tt'n'a'i as his direct superior. Gaining knowledge under N'a'tt'n'a'i guidance, he was eventually deemed experienced enough to join Commander Christopher Pike and Number One on a bizarre landing party mission into an unexplained phenomena. During this mission, Spock was telepathically contacted by a group known as "The Hundred" and allowed the party to discover that they were trying to prevent the collapse of the universe by temporally displacing star systems. (TOS: "The End of Eternity")

Some time after, the Enterprise, now under Pike's command, found itself without a science officer prior to the ship embarking on a long-term survey of the Pathiad Nebulatae, Captain April suggested to Pike that Cadet Spock could adequately fill the role. After a brief discussion, Spock accepted the temporary assignment where he was, once again, granted the rank of acting ensign. (EV: "Flesh of My Flesh")

"Flesh of My Flesh" gives the impression that Spock had never met Captain Pike or Number One before, which is at odds with "The End of Eternity".

On his first assignment aboard the Enterprise as science officer, Spock accompanied Captain Pike and a landing party to the Filos IV research station on a classified mission to check on the progress on developing an alternative to traditional transporter technology using the wormhole theory. Despite voicing concerns, Spock and the party agreed to a demonstration, but a malfunction caused Spock to be drawn into one of the wormhole and sent to another location on Filos IV. Fortunately, Captain Pike followed close behind and the pair were eventually rescued and returned to the Enterprise. Based on Spock's report and recommendations, Commodore Jose Mendez and Starfleet Command were convinced to place the portal experiments on indefinite hold. (TOS: "Spock: Reflections, Issue 2")

Early assignments

Spock was commissioned as a Starfleet officer in 2252 with the serial number S 179-276 SP, and held an A5 computer expert classification. Spock's first assignment as an ensign was as assistant science officer aboard a space cutter assigned to the Sol star system.

Some time after, Spock was promoted to the rank of lieutenant (j.g.) and was assigned as third officer and science officer aboard the USS Artemis, under the command of Captain Daniels. During his service aboard the Artemis, Spock received commendations for heroic action during planetary exploration difficulties as well as distinguishing himself in scientific research during the ship's long voyages.

In 2253, Daniels recommended Spock for promotion, which saw he advanced to the rank of full lieutenant and reassigned to the Enterprise where he was, once again, to serve as a science officer under Captain Pike. (Pocket TOS: Vulcan's Glory)

Vulcan's Glory states that Spock served aboard the space cutter for the duration of three years following his graduation from the Academy. He then served aboard the Artemis for two years prior to his promotion and assignment to the Enterprise. However, this proves unworkable with Spock's career as documented in the Star Trek Chronology.

USS Enterprise

Under Captain Pike

Vulcan's Glory
Spock (2254)

In 2253, Spock, holding the rank of lieutenant, was assigned as science officer aboard the Constitution-class USS Enterprise, under the command of Captain Christopher Pike. Spock would continue to serve under Pike for eleven years, four months and five days, before Pike's promotion to fleet captain in 2264. (TOS: "The Menagerie, Part I")

Talos IV

The following year, Spock's leg was wounded during a landing party mission to the planet Rigel VII. As the Enterprise headed for Vega colony for medical care, the ship received a radio wave distress call from the Talos Star Group, leading Pike to divert the Enterprise to planet Talos IV. Still limping from his injury, Spock joined Pike's landing party to the surface, where Pike was captured by the Talosians. Spock realized that the Talosians had powerful illusory abilities, and following Pike's recovery, recommended in his final report that visitation to the planet be banned. The judgement was endorsed by Starfleet and General Order 7 was enacted. (TOS: "The Cage", "The Menagerie, Part I", "The Menagerie, Part II")

Later missions

By early 2261, Spock had been promoted to the rank of lieutenant commander and held the post of chief science officer aboard the Enterprise. In February of this year, the Enterprise returned to Earth to receive a refit to her warp drive. Although he wished to remain aboard the Enterprise for the duration of her refit, Captain Pike essentially forced Spock to take some shore leave on Earth. Following his return to the Enterprise, Spock was contacted by a friend he met during leave, Leila Kalomi, who sought his advice in preventing an ecological disaster following the sabotaged Inception experiments on Mars. After some consideration, Spock formulated a method of transporting the infected section of Mars' regolith and holding it in a force field using a starship's force field generator. (Pocket TOS: Inception)

The five-year mission

The first year
Spock (2265)

Following Pike's promotion to fleet captain in 2264, Spock, now holding the rank of lieutenant commander, continued to serve as science officer aboard the Enterprise under her new commanding officer, James T. Kirk. (TOS: "All Those Years Ago...")

Thirteen months into Kirk's command, the Enterprise was ordered to perform an extra-galactic probe, which proved to be disastrous for the crew. First Officer Gary Mitchell developed enhanced psionic abilities when the ship encountered the galactic barrier at the edge of the galaxy. Spock examined the record tapes of the SS Valiant, an earlier ship that had encountered the barrier and had been destroyed. As Mitchell's powers increased, Spock believed he had become dangerous and feared that he would destroy the Enterprise. He advised Kirk that Mitchell should be marooned on a desolate planet, such as Delta Vega, or kill him before he became too powerful. Unfortunately, Kirk hesitated and attempted the first option, but Spock's concerns were borne out, and Kirk was forced to kill Mitchell. (TOS: "Where No Man Has Gone Before")

Following Mitchell's death, Kirk acknowledged Spock as his new first officer. (Pocket TOS: War Dragons)


On stardate 1709.2, the Enterprise repelled the first Romulan incursion of Federation space, when the Romulan bird-of-prey ChR Gal Gat'thong crossed the Neutral Zone and began attacking Federation outposts. Spock and the Enterprise bridge crew became the first Starfleet officers to make visual contact with the Romulans, which finally revealed their Vulcanoid appearance to Starfleet. Lieutenant John Stiles briefly suspected Spock of being a Romulan spy, until Spock saved his life during the course of the battle. (TOS: "Balance of Terror")

Discoveries and research

During the Enterprise's five-year mission of exploration, Spock often found himself encountering previously unknown life-forms and phenomena and his intense curiosity to discover all that was discoverable drove him forward. Spock soon developed a galaxy-wide reputation as a scientist as he published scientific papers related to many of the strange phenomena encountered by he and his crew mates.

Following the Enterprise's mission to planet Alfa 177 in 2266, which saw Captain Kirk duplicated after the ship's transporter reacted with the strange magnetic properties of Alfacite ore, Spock produced a detailed report on the "Alfacite Energy Phenomena" and told how the crew had managed to fuse the two duplicates together using the transporter. This report later helped Doctor Albar Exar in saving his young son's life.

A few months later, Spock also published scientific papers relating to the impression of memory engrams on an android duplicate, following the Enterprise's visit to Exo III and the encounter with Doctor Roger Korby. (Pocket TOS: The New Voyages: "Ni Var")

The second five-year mission

Commanding the Enterprise

USS Surak

USS Enterprise-A

USS Intrepid II

Later career

By 2323, Spock had been promoted to the rank of admiral. In September of that year, Spock traveled to the Starfleet Academy campus in San Francisco to make the commencement address for that year's first year cadets, which included a young man named Jean-Luc Picard. (Pocket TNG: Nova Command)

Diplomatic career

The alternate reality

Personal life



Amanda Grayson





Christopher Pike

James T. Kirk

A year after Kirk's death, Spock arranged for the USS Victory to transport him to the Enterprise-B so that he could visit the place where his friend had died. During this visit, Captain Harriman showed Spock the exact place where he had died and the plaque that had been put up in honor of Kirk. (TOS: "Spock: Reflections, Issue 1")

Leonard McCoy

Christine Chapel



Leila Kalomi


Awards and achievements

Starfleet service record

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