Sentinel Prime

{{about|the Transformers character|the fictional city in the Doom franchise|Doom Eternal}}

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{{Infobox character

| series = Transformers

| image = Rosenbauer Panther 8x8 • Front, Flughafenfeuerwehr Bremen.JPG

| alt =

| caption = Sentinel Prime's alternate mode
in the 2011 film

| voice = Movies & Television:

{{ubl

| Jack Angel (The Transformers)

| Townsend Coleman (Transformers: Animated)

| Leonard Nimoy (2011 film)

| Jon Hamm (Transformers One)}}

Games:

{{ubl

|Troy Baker (Transformers: War For Cybertron)}}

| affiliation = Autobots (allied with Decepticons in some continuities)

| lbl22 = Function

| data22 = Autobot Leader/Commander, mentor of Optimus Prime

| lbl33 = Alternate mode

| data33 = {{ubl

|Rosenbauer Panther fire truck (2011)

|Freight train (2016)

|Spaceship (2016)

|Cybertronian jet (2024)}}

}}

Sentinel Prime (Japanese: センチネルプライム) is a fictional character in the Transformers franchise. Generally depicted as an Autobot leader, Sentinel Prime has served as either a supporting character or antagonist in Transformers media. His first film appearance was in the 2011 film Transformers: Dark of the Moon as the main antagonist, and he eventually returns as the main antagonist in the 2024 animated film Transformers One.

Fictional character biography

= ''The Transformers'' =

In The Transformers episode "Five Faces of Darkness: Part 4", Rodimus Prime journeys into the Matrix of Leadership and witnesses a series of flashbacks of Cybertron's early days. One of them shows an unnamed blue robot who was a gladiator when the Quintessons ruled Cybertron. He led the rebellion that chased them off Cybertron. He led the Autobots against the Decepticons to victory. However, he was killed by Megatron at the start of the next war. Optimus Prime's predecessor as Autobot Leader wouldn't have a name until the American comic.

= ''Transformers: Animated'' =

In the Cartoon Network television show Transformers: Animated, Sentinel Prime is a supporting character and an imposing figure within the Cybertron Elite Guard corps with a brash and smug demeanor as well as an obsession with following the rules of his superiors. After scanning an alternate mode as an earth disguise, he transforms into a pickup truck with a snow-plow attachment.{{Cite book |last1=Sorenson |first1=Jim |title=Transformers Animated: The AllSpark Almanac |last2=Foster |first2=Bill |date=19 August 2009 |publisher=IDW Publishing |isbn=978-1600104879}}

= ''Transformers: Dark of the Moon'' =

Sentinel Prime is the main antagonist of the 2011 film Transformers: Dark of the Moon, established as Optimus's teacher and the leader of the Autobots. At the beginning of the film, Optimus and the other Autobots find him on the Ark, an Autobot spacecraft that crashed on Earth's moon after being damaged during its escape from a wartorn Cybertron. Though Sentinel initially appears as a noble character, refusing the Matrix of Leadership from Optimus and asking him to take on his role as a mentor to the Autobots, he is revealed to have allied centuries prior with Megatron and the Decepticons to conquer Earth (Unicron) and even assassinates Ironhide. At the end of the film, Sentinel Prime takes over the city of Chicago by using Decepticon pillars to bring Megatron's army to Earth, while usurping Megatron as leader of the Decepticons and planing to use the pillars to bring Cybertron itself to Earth. At the end of the film, he and Optimus Prime duel with each other, culminating with Sentinel ripping Optimus's arm off and nearly killing him, only for Megatron to intervene and injure Sentinel fatally to reclaim his leadership position. After Sentinel is defeated, Optimus takes the opportunity to rip Megatron's head off, while Sentinel begs for his life, only for Optimus to proclaim Sentinel "betrayed himself" and shoot him with Megatron's shotgun.{{Cite book |title=Transformers: Dark of the Moon (Book Adaptation, Full Collection) |date=11 May 2011 |publisher=IDW Publishing |isbn=978-1600109171 |chapter=Issue 4}}{{Efn|See the Wikipedia article for Transformers: Dark of the Moon, for a more detailed look into Sentinel's fate. The IDW Publishing book adaptation of the film has the same plot, and Sentinel dies the same way with the exception that Megatron does not die unlike in the film.}}

= ''Transformers: More Than Meets The Eye'' =

Sentinel Prime appears as an antagonist in the comic Transformers: More Than Meets The Eye from IDW Publishing. Rumored to have been killed by Megatron during the early years of the Great War, Sentinel Prime later reveals that he had survived by imparting his knowledge into a smaller robot body and escaping in plain sight. Infiltrating the moon of Luna-1, he manages to outrun the Autobot guards there before taking mind control over one of them, Red Alert. They both mastermind a plot to send the reanimated Titan giants to attack Cybertron but Sentinel is eventually shot down by Red Alert, who turns on him. Sentinel then falls into a large hole by accident, killing him from the impact.{{Cite book |title=The Transformers: Titans Return |date=14 January 2017 |publisher=IDW Publishing |isbn=978-1631408212}}

= ''Transformers: War for Cybertron'' =

In the High Moon Studios video game Transformers: War for Cybertron, Sentinel Zeta Prime acts as a vassal for the Quintessons and rules over Cybertron; he eventually manages to expel the Quintessons from Cybertron with the help of the population of Cybertron, who had formed a resistance.{{Cite book |last=Robson |first=Justina |title=Transformers: The Covenant of Primus |publisher=Becker & Mayer |isbn=978-1477805992 |publication-date=11 December 2013}}{{Cite book |last=Irvine |first=Alex |title=Transformers: Exodus |date=23 June 2010 |publisher=Del Rey Books |isbn=978-0345519856}} He was later imprisoned by the Decepticons during the early days of the Great War, and the position of Prime was granted to the lowly librarian Orion Pax, who became Optimus Prime. Sentinel was eventually executed by Megatron afterwards. In his dying breath, he was able to talk to Optimus Prime and Jazz who had just come from receiving a distress signal from his prison.

= ''Transformers One'' =

In the 2024 animated film, Transformers One, Sentinel Prime is voiced by Jon Hamm, where he is once again the film's main antagonist. He is the head of Cybertron and leader of Iacon, to fight the Quintessons and search for the Matrix of Leadership, but to no avail. The truth was discovered by Orion Pax, D-16, Elita-1 and B-127, when Alpha Trion reveals that Sentinel was just the assistant, until he betrayed and killed the Primes to steal the Matrix from them, which failed when it rejected him for being unworthy and disappeared. He allied with the Quintessons for power in return for Energon, and secretly removed the miners' transformation cogs to keep them powerless. However, Sentinel and his soldiers arrive, so Trion holds them off to allow the others to escape, resulting in him being captured and executed by Sentinel. In Iacon, Sentinel tortures D-16, who learns that he took the cog of his idol, Megatronus Prime, before being branded with his symbol. In the battle, Sentinel is seen on video before the treaty with the Quintessons and the murder of the Primes, causing all the citizens to turn against him. Eventually, Sentinel is killed by a furious and vengeful D-16 by getting ripped in half, who then takes Megatronus Prime's cog, and renames himself as "Megatron".

Voice actors

Sentinel Prime was voiced by Townsend Coleman in the Transformers: Animated cartoon.{{Cite web |title=Sentinel Prime Character Infomation And Resources At TransformersAnimated.com |url=http://www.transformersanimated.com/transformers-animated-sentinel-prime-character.php |access-date=2024-08-16 |website=www.transformersanimated.com}} In Dark of the Moon, Sentinel Prime was voiced by Leonard Nimoy, who previously voiced Galvatron in The Transformers: The Movie. In the video game Transformers: War for Cybertron, he is voiced by Troy Baker.{{fact|date=September 2024}} In the film Transformers One he is voiced by Jon Hamm.{{Cite web |last=Rubin |first=Rebecca |date=2023-04-27 |title='Transformers' Animated Prequel Sets Chris Hemsworth, Scarlett Johansson and More Voice Cast |url=https://variety.com/2023/film/news/transformers-animated-prequel-chris-hemsworth-scarlett-johansson-1235596692/ |access-date=2024-08-16 |website=Variety |language=en-US}}

Merchandise

= ''Transformers: Animated'' =

Released in 2008, Sentinel Prime has a Deluxe Class action figure that converts into a dark blue pickup truck with an orange-silver snow-plow attachment and has two accessories included, which are a lance and shield.{{Cite web |title=Sentinel Prime (2008) - Autobot Elite Commander - www.tfu.info |url=https://www.tfu.info/2008/Autobot/SentinelPrime/sentinelprime.htm |access-date=2024-08-16 |website=www.tfu.info}}

= Movieverse toylines =

Sentinel Prime has had three new action figures released in 2011 as part of the toyline of Transformers: Dark of the Moon; which are the miniature scaled Cyberverse Commander figure, and the larger Voyager Class and Leader Class figures; all of which turn into Rosenbauer Panther fire trucks.{{Cite web |title=Sentinel Prime (2011) - Autobot - www.tfu.info |url=https://www.tfu.info/2011/Autobot/CommanderSentinelPrime/sentinelprime.htm |access-date=2024-08-16 |website=www.tfu.info}}{{Cite web |title=Voyager Class Sentinel Prime (2011) - Autobot - www.tfu.info |url=https://www.tfu.info/2011/Autobot/VoyagerSentinelPrime/sentinelprime.htm |access-date=2024-08-16 |website=www.tfu.info}}{{Cite web |title=Leader Class Sentinel Prime (2011) - Autobot - www.tfu.info |url=https://www.tfu.info/2011/Autobot/SentinelPrime/sentinelprime.htm |access-date=2024-08-16 |website=www.tfu.info}} In 2020, he received a Voyager Class action figure in the Studio Series toyline that was meant to be more accurate to his film appearance.{{Cite web |title=Instructions Manual & Rules for Transformers Toys Studio Series 61 Voyager Class Dark of the Moon Sentinel Prime Action Figure - Hasbro |url=https://instructions.hasbro.com/en-us/instruction/transformers-toys-studio-series-61-voyager-class-dark-of-the-moon-sentinel-prime-action-figure-ages-8-and-up-6-5-inch |access-date=2024-08-16 |website=Hasbro Instructions |language=en-us}}

Sentinel Prime has three kid-oriented figures in the toyline of Transformers One.{{Cite web |date=2024-04-18 |title=Transformers One Mainline Toys Revealed |url=https://news.tfw2005.com/2024/04/18/transformers-one-mainline-toys-revealed-509122 |access-date=2024-08-16 |website=Transformer World 2005 - TFW2005.COM |language=en-US}} Listings have also appeared for a new action figure of him in the Studio Series toyline for April 2025.{{Cite web |last=Tformers.com |title=2025 Studio Series Waves 1 - 4 and More Transformers Leaked Listings |url=https://tformers.com/2025-studio-series-waves-1-4-and-more-transformers-leaked-listings/52355/news.html |access-date=2024-08-16 |website=Tformers}}

= Other toys =

First revealed at the 2015 SDCC event, Sentinel Prime had a Voyager Class figure in the Titans Return toyline, transforming from robot into either a freight train or spaceship modes.{{Cite web |last=Tformers.com |title=Titans Return - Voyager Sentinel Prime Official Product Images |url=https://tformers.com/titans-return-voyager-sentinel-prime-official-product-images/27816/news.html |access-date=2024-08-16 |website=Tformers}}{{Cite web |title="Generations" Sentinel Prime Toy Review |url=https://bwtf.com/toyreviews/generations/titansreturn/sentinel-prime |access-date=2024-08-16 |website=Ben's World of Transformers |language=en}} The head of the figure is detachable and can either be transformed into a smaller robot to pilot the vehicle modes, or be attached as a head to other figures in the Titans Return toyline.
A redeco of the 1984 Generation One Optimus Prime in yellow was sold as Sentinel Prime in the Missing Link toyline. This uses the updated 2023 version of the G1 Optimus Prime mold, which has improved poseability.{{Cite web |date=2024-07-26 |title=Takara Exclusive Missing Link Sentinel Prime, Super Starscream, ROTB Nemesis Prime & Grey Throne First Looks |url=https://news.tfw2005.com/2024/07/25/takara-exclusive-missing-link-sentinel-prime-super-starscream-rotb-nemesis-prime-grey-throne-first-looks-516790 |access-date=2024-08-16 |website=Transformer World 2005 - TFW2005.COM |language=en-US}}
A lego-compatible set which can be assembled into Sentinel Prime was released in 2011, as part of the Kre-O toyline.{{Cite web |title=Kre-O Sentinel Prime (2011) - Autobot - www.tfu.info |url=https://www.tfu.info/2011/Autobot/Kre-OSentinelPrime/sentinelprime.htm |access-date=2024-08-16 |website=www.tfu.info}} It can be rebuilt into robot and truck forms, and two minifigures are also included.