Spock (Kelvin timeline)

 Spock was a half-Vulcan/half-Human Starfleet officer who served the Federation in the 23rd century.

Early life
This alternate Spock was born to, a Vulcan, and , a Human, in 2230 in the city of Shi'Kahr, Vulcan.

As a young boy, Spock was often the target of abuse from his schoolmates because of his Human ancestry. On one particular occasion in which his classmates accused his father of being a traitor, he lost emotional control and was so angered that he violently beat up his tormentor. Previously, he had counted that the incident was the 35th time those particular schoolmates had attempted to elicit an emotional response from him. When he then spoke to his disappointed father about his mother, asking him why he married a Human, Sarek coldly remarked that his decision to marry her was the only logical choice, given that he was an ambassador of Vulcan to Earth.

After completing his advanced training he began during childhood in the learning pods, Spock applied to both the Vulcan Science Academy and Starfleet Academy. He was also considering completing his training in the kolinahr - the Vulcan ritual of purging all vestigial emotions - and asked his mother whether she would think less of him for discarding emotion in that way. His mother simply remarked that she would always be proud of him, no matter what choices he made. He later was admitted to the Vulcan Science Academy, but declined the offer after the board remarked that his admission to the Academy was commendable despite his "disadvantage" of being half Human.

Early Starfleet career
Spock went on to attend Starfleet Academy, and would come to be known as one of its most distinguished graduates (2254). By 2255, he had attained the rank of commander, and acted as an instructor at the Academy.

In 2254, Spock first programmed the Kobayashi Maru scenario, the purpose of which was to allow cadets to experience fear in the face of death, and in confronting it, develop skills necessary for command. By summer 2255, Spock had established a strong working relationship with Cadet, a xenolinguistics student at the Academy. On Spock's recommendation, Vice Admiral Tullsey and SFPD Homicide Detective Harve Bogenn asked Uhura to analyze recordings of the serial killer known as the Doctor speaking in an unknown language. Spock manifested his concern for Uhura when she was attacked by one of the nanite swarms which constituted "the Doctor", visiting her in her hospital room to review her lab work. At this time Spock had recently become the chief of simulation programming at the Academy. He had reprogrammed the Advanced Tactical Training Science mission final, the Tanika Station scenario, and gave an extremely favorable performance summary to Team Delta, led by his future colleague Cadet. 

In 2258, when Kirk was ultimately able to pass the Kobayashi Maru test and defeat the scenario, Spock accused the cadet of inserting a subroutine into the program, changing the simulation in his favor, so he could win. At a hearing of the Academy board, Kirk asked for the right to confront Spock directly, and the two clashed over Kirk's actions.

The hearing was cut short by the receipt of a distress call from Vulcan, and Spock reported to the USS Enterprise (alternate reality) as first officer under Captain. En route to Vulcan, Spock once again clashed with Kirk, who had come aboard the Enterprise without authorization. Over Kirk's arguments that the distress call from Vulcan was the result of an attack by Romulans, Spock demanded that Kirk be removed from the bridge. Ultimately, arrival at Vulcan, which was under attack, proved that Kirk was correct, and contact was made with the Romulan vessel Narada, which was attacking the planet. When contact was established with the ship's captain,, he appeared to know Spock, although Spock had never met the Romulan before. Pike, who was ordered to transport himself to the Narada, left Spock in charge as acting captain.

Following the disabling of the Narada's drill platform, Nero launched the red matter into Vulcan's core, causing the formation of a black hole which would devour the planet. Judging from their "black hole" technology, Spock reasoned with the best of Vulcan rationality that the Narada must have traveled back in time from the future. Realizing that not much time was left to save his planet, Spock beamed to the surface to at least rescue the Vulcan Council, including his father and mother. As the survivors were about to be beamed aboard the Enterprise, the disintegrating surface on the planet collapsed beneath Spock's mother before the transport could be completed and she died. She was one of almost six billion killed with the loss of the planet.

Struggling with the loss of his world and the death of his mother, Spock received comfort from. Although he initially remained outwardly stable and unresponsive, he eventually returned her embrace. After deciding to take the Enterprise to the Laurentian system to rendezvous with the rest of the fleet, and engaging in a furious debate with Kirk which led to him employing the Vulcan nerve pinch on the acting first officer, Spock ordered Kirk to be thrown off the ship, jettisoning him in an escape pod near Delta Vega. Spock was aware of the split loyalties of Doctor, and remarked upon his dedication to duty. McCoy did not receive the Vulcan's remarks well, and rebuked him for abandoning Kirk. With the Enterprise now at warp, Spock was surprised when Kirk and were able to beam aboard the ship, and demanded to know how they had been able to transport during warp. Kirk, who had by now met with a version of Spock who had traveled back in time with Nero, was told to sufficiently provoke Spock in order to show everyone that he was too emotionally compromised to be in command. This, in turn, would allow Kirk to take charge of the Enterprise and ensure that events unfold as they are meant. Kirk made several unsuccessful attempts to insult and cajole Spock, until finally a jibe about whether Spock had loved his mother who was murdered, made the Vulcan snap, attacking Kirk and coming extremely close to killing him. He was only stopped by his father, and Spock immediately realized what had happened, and stepped down from command, ordering McCoy to note it in the ship's log. Returning to the transporter room, Spock was comforted by the words of his father, who admitted that he actually had married Amanda because he loved her.

With the command crew debating how to beam aboard the Narada without being detected, Spock returned to duty, and endorsed 's plan to hide the Enterprise near Saturn's moon. He then volunteered to beam to the Narada, noting that the similarities between Romulan and Vulcan language and culture would help him in determining the location of Captain Pike and determine a way to destroy the vessel. Kirk, now in command, agreed, and accompanied Spock aboard the Narada. After a brief phaser fight with the Romulan crew, Spock was able to locate the Jellyfish and Captain Pike. On board the Jellyfish, the computer recognized him as Ambassador Spock. Spock confronted Kirk about withholding information, but Kirk would not disclose anything further, leaving Spock to take command of the Jellyfish.

Attacking the Narada from the inside, Spock escaped into Earth's orbit, and was able to destroy the drill platform as it dug into San Francisco Bay, before warping to another part of the system, with the Narada in pursuit. Spock placed the Jellyfish on a collision course with the Romulan vessel, with the Enterprise arriving in time to knock down enemy torpedoes and beam Spock, Kirk and Pike aboard as the Jellyfish was destroyed, causing the formation of a black hole within the Narada. As Kirk offered assistance to Nero and his crew, Spock reacted with surprise at Kirk's stating that such an offer was logical - the Vulcan noting that this was not the time for logic. Ultimately, the black hole, with assistance from the Enterprise's weapons, consumed the Narada and Nero.

Back on Earth, Spock finally met with his prime reality counterpart, who explained that he had wanted to make sure that Spock and Kirk became friends - something which would ultimately define them both and was a crucial aspect of their lives. Spock had planned to resign from Starfleet and help rebuild Vulcan society, but his prime reality counterpart urged him to remain with Starfleet. About to join the surviving Vulcans himself, the prime Spock chose not to offer his alternate self the traditional Vulcan salute, noting that it would have been self serving; instead he wished him good luck.

With Kirk now assigned as captain of the Enterprise, Spock offered his services as first officer, and Kirk accepted. 

First officer of the Enterprise
Months after the destruction of Vulcan, the Enterprise set out on a mission to the edge of the Milky Way Galaxy. When the ship encountered the force field at the edge of the galaxy, Kirk's Academy friend Lieutenant was mutated into a superhuman being. Spock performed a Vulcan mind meld with the sedated Mitchell and determined that Mitchell had "no consciousness" and "no sentience of any kind". Eventually Spock recommended either leaving Mitchell on Delta Vega I or killing him to protect the ship. When Kirk confronted Mitchell, who had already killed, in the rocky wilderness of Delta Vega, Spock approached Mitchell from behind and administered the Vulcan nerve pinch. Kirk then killed Mitchell with a. Spock subsequently offered to play chess with Kirk, who had previously played the game with Mitchell. 

Background
The alternate Spock depicted in the new reality is presented as the same character as Spock from the prime reality, but with a divergent life after Nero arrived in year 2233, as caused by different historical events that stemmed from that alteration.

Certain aspects of the alternate Spock's life are unclear, in this case, because of time-travel situations that might not be possible in the new reality. In, the prime reality Spock of year 2269 had traveled back in time to his own childhood, an action that saved him from a bad end on a rebellious kahs-wan excursion. Spock remembered interacting with his future self, and was highly influenced by the time-travel situation—including the fact that Spock was taught the Vulcan neck pinch by his future self, as he recalled in. It is not clear how this would have occurred in a new reality where the 2269 Spock will probably exist quite differently due to the massive changes to the timeline caused by Nero.