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"	For Cybertron! For our home! What war destroyed, we can rebuild - but only if we join with the Decepticons!	„
	~ Sentinel explaining why he must join the Decepticons.

Sentinel Prime is a major antagonist of the Transformers Cinematic Universe, serving as the main antagonist of the 2011 science fiction action film Transformers: Dark of the Moon.

He was the original Autobots leader before Optimus Prime. After his resurrection, it is revealed that he betrayed the Autobots and made a deal with Megatron so that he could save Cybertron. Sentinel's ruthless motives, selfishness and cruelty towards both Optimus and Megatron led to his own death.

He was voiced by the late Leonard Nimoy, who was best known for portraying Mr. Spock in Star Trek. Nimoy also voiced Galvatron in The Transformers: The Movie, first released in 1986, and also appeared in Transformers 2007 (we hear him as Mr. Spock on Bumblebee's faulty speech generator), and also did the voice of Master Xehanort in the Kingdom Hearts series.

Biography

Transformers: Dark of the Moon

Past

On the Planet Cybertron, there was a great war between the Autobots (led by Sentinel) and the Decepticons (led by The Fallen) that practically destroyed Cybertron. Wanting to save his dying homeworld, Sentinel Prime previously made a secret pact with Megatron (the Fallen's apprentice) to help him recreate Cybertron in the name of the Decepticons. Megatron told him to take his Space Pillars (machines that can teleport anything) to the planet Earth and they'll recreate Cybertron there. Sentinel Prime flew away in a ship called the Ark that carried hundreds of Space Pillars. Sentinel Prime was supposed to warp jump to Earth so he and Megatron could recreate Cybertron. However, before he could warp jumped, Decepticon ships dealt heavy damage towards the Ark, resulting in Sentinel Prime to accidentally crashed landed on the dark side of the moon. This also resulted in Sentinel Prime entering in stasis lock.

In 1969, Neil Armstrong was secretly assigned to search on the moon and analyzes the crash. Armstrong claimed there were no survivors. Since 1972 no one went to the moon since, and was deemed above classified. Neil Armstrong decided to take the space bridge pillars from the moon, which were then stored in secret by the government which became a law that no one is to know of the alien technology. This law was enforced by the arrogant Director of National Intelligence, Charlotte Mearing before Sentinel was revived.

Present Day

Following the death of the Fallen, Optimus Prime and Ratchet were helping their human allies protecting the Earth, when they encountered a piece of a machine that was originally part of the Ark. They eventually discovered that the Ark crashed landed on the dark side of the moon. The Autobots flew to the dark side of the moon and found the Ark, along with both Sentinel Prime, and five Pillars. With the Autobot Matrix of Leadership, Optimus revived Sentinel Prime. Sentinel scanned a Rosenbauer Fire Engine for an Earth form. When Sentinel Prime and Optimus Prime were talking to each other alone, Optimus thought that since Sentinel Prime was his leader, Sentinel should have the Autobot Matrix of Leadership and continue leading the Autobots. However, Sentinel said that since he knows nothing about this planet, Optimus should keep the Matrix, teach him about the planet, and continue being the leader of the Autobots.

Betraying the Autobots

Sentinel Prime killing Ironhide with the Cosmic Rust Gun.

The Decepticon sub-group, the Dreads (Hatchet, Crowbar and Crankcase) chased after Sentinel Prime on his way to a different NEST base. Bumblebee, Dino, Ironhide and Sideswipe guarded Sentinel allowing him to escape wherein Bumblebee and Dino killed Hatchet while Ironhide and Sideswipe destroyed Crankcase and Crowbar. After the chase scene ended, Sentinel revealed his true colors, claiming that the Autobots shall realize that he was not actually going to help the Autobots win the war, but instead made a deal with Megatron. He murdered Ironhide, the Autobot closest to him, to distract NEST before wiping out NEST, with only a few human survivors.

The Invasion and Usurping the Decepticons

With the help of Megatron, Starscream and other Decepticons, they were able to open a space gate so that the Decepticon protoforms can invade the Earth. He decided to spare Optimus, because he was his apprentice once, and he wanted Optimus to realize how little humans actually cared for them (foreshadowing what would happen in Age of Extinction). They first took over Chicago, IL and blocked it off so the protoforms would kill any Autobots attempting to infiltrate. The protoforms also killed most of the Chicagoans (except for Dylan Gould due to him being an ally of Soundwave, and Carly, his girlfriend). As the space bridge pillars were being set up, Megatron began to go on about the success and victory of their plan, in which Sentinel then attacked him, reminding him of his place: he was not working for Megatron, he was working with him. He then proceeded to take over full command of the Decepticons. Sentinel stayed out of most of the battle, relying on the Decepticon warriors instead, including (but not limited to) Shockwave, Soundwave, Laserbeak, Barricade and Starscream (all of which, except for Barricade, would be killed during the battle).

Transporting Cybertron and Death

Other Decepticons were placed around the world with a few of the Pillars. They were going to be used to open a Space Gate and bring Cybertron into the Earth's atmosphere. After the Red Pillar was deactivated by Optimus, (the Pillar that controls all the other pillars) Sentinel Prime fought all the Autobots and N.E.S.T. with little to no effort. While he was fighting the Autobots, Sentinel Prime ordered any surviving Decepticons and allies of the Decepticons to reactivate the Pillar. NEST was able to land some shots on Sentinel, and he attempted to escape, but Optimus chased him and attacked him. Sentinel managed to overpower Optimus and slice one of his arms, allowing his former student to vainly beg for mercy before he would deliver the killing blow. Simultaneously, Carly (Sam Witwicky's new girlfriend) convinced Megatron to turn on Sentinel Prime, claiming that if Sentinel did succeed in killing Optimus and transported Cybertron, Megatron would be nothing more than Sentinel's own pawn. Megatron chooses to heed her warning (of course, he only did so because he wanted to regain leadership of the Decepticons) and rushes into the one-sided duel just as Sentinel is about to kill Optimus and severely incapacitates Sentinel, claiming that Earth is his planet to rule. After the space bridge was destroyed, Megatron proposed a rather insincere truce to Optimus, but Optimus refused and slew him with no effort, knowing his true intentions and possibly doing so as punishment of his previous actions.

With his plans in ruins, the severely weakened Sentinel attempted to justify his actions, claiming all he ever wanted was to save the Transformer species, which was why he betrayed Optimus. His former pupil, however, countered it was never about betraying Optimus; by foolishy allying with Megatron and planning to enslave humanity, Sentinel had "betrayed himself". Upon hearing Optimus pick up and cock Megatron's fusion shotgun, now knowing Sentinel is now too much of a fool, killing his friends, and could never be trusted again, as Optimus prepares to fire, as Sentinel gets scared and desperately begs for Optimus not to kill him, as Optimus shoots him in the back and then the head, putting an end to Sentinel's life. With Sentinel's death, the deaths of Ironhide and the human soldiers were avenged.

Transformers: Age of Extinction

Despite being killed in the previous film, KSI manages to recover parts of Sentinel's body, particularly his head, which are used to create many man-made Transformers, including Galvatron, who is later revealed to be possessed by the still living mind of Megatron.

Personality

Sentinel Prime, at first, seemed to be a heroic figure and a symbol of freedom to Optimus Prime, but later on, he develops into a malevolent and corrupt lunatic who wishes to dictate everyone else, either Cybertronian or human.

As an Autobot, Sentinel had taught the value of freedom being everyone's right back to Optimus when the latter was the former's student. However, over the years, Sentinel Prime has come to prefer having power and authority much more than enforcing freedom for everyone. Optimus claims that Earth should be the new home for their race as the humans welcomed them, although Sentinel being discriminatory despised the idea of sharing a planet with weaker, smaller organic beings and he wanted Cybertron restored instead. He was more than willing to kill his former student and fellow Transformers if it meant getting his way.

Sentinel also proved to be highly power-hungry, as he forced Megatron to abdicate from being leader of the Decepticons. Despite the brief succession, it ultimately led to his downfall as Megatron, having been convinced by Carly that he would only be one of Sentinel's pawns, realized Sentinel was using him and saved Optimus as he severely incapacitated Sentinel with minimal effort which led to both of their deaths by Optimus.

Powers and Abilities

Powers

Cybertronian Physiology: As the last of the Primes, Sentinel is one of the most, if not the most powerful Cybertronian, with seemingly only Megatron and Optimus being on par. His powers and abilities include:
- Superhuman Strength: To be added
- Superhuman Durability: To be added
- Superhuman Speed: To be added
- Superhuman Agility: To be added
- Superhuman Stamina: To be added
- Superhuman Reflexes: To be added
- Longevity: To be added

Abilities

Master Combatant: Sentinel Prime was an excellent fighter, able to even beat a Decepticon in combat. During his final battle with Optimus he was able to hold against his former student (however he did use dirty tactics like ordering all Decepticon ships to fire at Optimus). He also singled-handling took most of the Autobots and N.E.S.T. Troops and later on on a bridge he gain the upper hand, due to Optmus being blinded by anger, and manage to cripple his arm and almost killed him until Megatron intervened.
Master Leader: Sentinel Prime led Cybertron when it was the crown jewel of the galaxy.

Equipment

Primax Blade: The Primax Blade was the ancient double bladed Sword owned and used by Sentinel Prime as his melee weapon of choice. It's versatile enough to have two configurations: while Sentinel can wield it one-handed in its long dual-bladed form, it also has a half-length mode which he can wave around just as easily. He stows it on his back when it's not in use. Sentinel Prime's bladed staff is able to be folded up into a single sword in the film. It was used by Sentinel to fight Optimus Prime, and was lost in the Chicago River after Sentinel was beaten down by Megatron.
Shield: Sentinel Prime also carries a large shield which he used to defend himself against multiple enemies.
Cosmic Rust Cannon: Sentinel Prime carries a Cosmic Rust cannon that causes any metal it fires upon to rust and crumple away. He used it to murder Ironhide. It is a powerful weapon and doesn't just infect him with cosmic rust, but causes horrific exterior damage to Ironhide, killing him in just three shots and the effect rusts the Autobot veteran away with his body falling apart. His action shows that he revealed his true colors — Sentinel had made a deal with Megatron. Although this weapon is never used to its full potential. As for the weapon in general, not many Autobots like it, as they thought it was something the Decepticons would likely use, and wasn't up to their honorable standard. He lost it during his final battle when he was hit with a rocket launcher.
Pillars: The Pillars were a set of transport devices created by Sentinel Prime. Together, the Pillars formed a Space Bridge, which could transport matter through time and space. The Control Pillar was the primary Pillar that controlled the rest to form the Space Bridge, and when it was destroyed during the Battle of Chicago, the other Pillars shut off, most falling into and burning up in orbit, but at least one found its way into the hands of Edmund Burton.

Victims

Ironhide
Skids (off-screen)
Mudflap (off-screen)
Most of William Lennox's troops
Que/Wheeljack (Indirectly caused)
James Savoy's sister (Indirectly caused)
Numerous counts of unnamed Chicagoans (caused)

Quotes

Gallery

Images

Videos

SENTINEL PRIME - Short Flash Transformers Series

Trivia

He is the third incarnation of Sentinel Prime to be in a negative light with the IDW Sentinel Prime being the first, and the Transformers Animated Sentinel Prime being the second, albeit this Sentinel is far darker than his animated counterpart.
Sentinel Prime is voiced by Mr. Spock himself: the late Leonard Nimoy, who also did the voice of Galvatron, in The Transformers: The Movie. Sentinel Prime even spoke, "The needs of the many outweigh the needs of the few", which was spoken by Leonard Nimoy's character Spock from Star Trek.
- Nimoy was previously considered to voice The Fallen in the previous movie.
Seninel's facial features were based off of former James Bond actor Sean Connery. When Leonard Nimoy was cast as the character's voice, his own features were incorporated into Sentinel' face as well.
Sentinel Prime was originally meant to appear in an original draft of the first film via hologram in the Allspark Cube after Sam Witwicky fell off the building after being attacked by Megatron, telling him about Optimus and Megatron's relationship.
- Sentinel Prime is however mentioned by Sam Witwicky in the second film.
He was originally going to be named "Ultra Magnus", a failed Prime from the original Transformers movie and a protagonist in third season on the television show.
Sentinel Prime is colored yellowish-orange in the trailer of Dark of the Moon similar to a design of his in G1, though he is actually colored red throughout the movie.
In an original draft of Transformers: Dark of the Moon, after Sentinel Prime kills Ironhide, had featured him trying to kill Bumblebee but instead kills Skids who got in the way and then Mudflap after he tried to avenge his twin brother. It was cut due to negative views about the said Autobots. This is still seen in the comic book and novel adaptations (See gallery above).
Though he is portrayed as a villain, Sentinel Prime's film appearance and alt mode has been used to many outside incarnations of his on the Transformers universe such as Kre-O version and Angry Birds version.
At first, Sentinel was the key character in Transformers: Dark of the Moon, though his betrayal towards the Autobots, and even Megatron as well, promoted Sentinel to be the true main antagonist for the rest of the film.
Because of his actions, Sentinel Prime is the opposite of Jetfire from Transformers: Revenge of the Fallen. While the former was an Autobot turned Decepticon, the latter was the opposite.
- Another thing that makes them counterparts is that Sentinel Prime was against the human race (for a former Autobot), while Jetfire was supportive for them (for a former Decepticon).
All of his toys classified him as an Autobot. For the 2018 Studio Series toy, he is classified as a Decepticon due to his betrayal on the film, despite not actually being a Decepticon himself.
Sentinel Prime chose to spare Optimus's life at the Lincoln Memorial as he wanted him to see and understand his goal and reasoning. In earlier drafts of the film, however, Sentinel was very much willing to kill him but was forced to spare him to ensure the pillars wouldn't be destroyed.
Sentinel Prime is a dark mirror of Optimus Prime: They both want what's best for the Cybertronian race, but while Optimus was able to coexist with mankind peacefully and even aid them, Sentinel sought to enslave them and have the Decepticons rule the planet. In Age of Extinction, after seeing his fellow Autobots killed by Cemetery Wind, Optimus became disillusioned with mankind, but after helping Cade and Tessa defeat Lockdown and Cemetery Wind, he regained his optimism for mankind. To sum up, Sentinel is what Optimus could have been if he allowed his cynicism to consume him.

External Links

Sentinel Prime on Heroes Wiki for His Heroic Counterpart.

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Villains

Cinematic Universe Villains

Original Continuity

Movies
Transformers: Decepticons (Megatron, Starscream, Barricade, Frenzy, Blackout, Scorponok, Bonecrusher, Brawl & Dispensor)
Transformers: Revenge of the Fallen: Decepticons (The Fallen, Megatron, Starscream, Soundwave, Scorponok, Sideways, Grindor, Ravage, Alice & Scalpel) | Constructicons/Devastator (Demolishor, Rampage, Long Haul, Mixmaster, Scrapper & Scavenger) | Theodore Galloway
Transformers: Dark of the Moon: Sentinel Prime | Decepticons (Megatron, Starscream, Soundwave, Laserbeak, Dylan Gould, Shockwave, Driller, Watch-Out, Igor, Crankcase, Crowbar & Devcon)
Transformers: Age of Extinction: Cemetery Wind (Harold Attinger, Lockdown, James Savoy, Steeljaws & Shadow Raiders) | Kinetic Solutions Incorporated (Joshua Joyce, Galvatron, Stinger, & KSI Drones) | The Creators
Transformers: The Last Knight: Quintessa | Infernocons | Decepticons (Megatron, Barricade, Nitro Zeus, Mohawk, Berserker, Onslaught & Dreadbot) | Transformers Reaction Force (Commander Santos) | Unicron

Reboot Continuity
Bumblebee: Decepticons (Shatter, Dropkick, Blitzwing, Soundwave, Ravage, Shockwave, Starscream, Thundercracker, Skywarp & Thrust) | Jack Burns | Dr. Powell

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Source: https://villains.fandom.com/wiki/Sentinel_Prime_%28Transformers_Film_Series%29