Sentinel Prime

**Sentinel Prime** is the name of several fictional characters in many of the *Transformers* series. The first mention of Sentinel Prime was in issue #65 of the US Marvel Comics *Transformers* series, where he was mentioned to hold the Autobot Matrix of Leadership before Optimus Prime. 

Sentinel Prime is One of the members of the Dynasty of Primes and dedicated as the leader of the Autobots and has since appeared in a variety of forms as either Optimus Prime's mentor or friend. In the 2011 live action movie *Transformers: Dark of the Moon*, Sentinel was the main villain and was voiced by Leonard Nimoy. Sentinel was also the main villain of the movie *Transformers One*.

## Print media
### Marvel Comics
The 1988 British Marvel comic book The Legacy of Unicron Part 5 had a flashback to a golden Autobot dying and giving Optimus Prime the Matrix of Leadership so that Optimus could lead the Autobots. Later the American comic book Transformers 65 listed every Autobot leader before Optimus and the last one was named Sentinel Prime.

### Dreamwave Comics
In 2002, a company called Dreamwave published a prequel comic called The War Within. In it, Megatron murders Sentinel Prime so the Autobots make someone named Optronix their new leader and give him the name Optimus Prime.

### *Transformers One*
In the 2024 movie *Transformers One*, Sentinel Prime is the ruler of Cybertron who turns out to be evil. When aliens called Quintessons attacked Cybertron, Sentinel betrayed the leaders of Cybertron (called the Primes) and killed them all except one Prime that he tried to kill but who survived. Then Sentinel tried to steal something called The Matrix of Leadership so he could be very powerful but it turned to dust. Sentinel lied to everyone that his name was Sentinel Prime, instead of just Sentinel. Sentinel also stole the cogs from newborn Transformers so that they couldn't transform. Sentinel made them mine the depths of Cybertron for Energon, which only The Matrix of Leadership could create, and give it to the Quintessons. And Sentinel had all the Transformers live underground so that they wouldn't know that he was doing that. When Sentinel finds out Alpha Trion is alive, Sentinel cuts his head off. Sentinel also captures most of the Transformers trying to overthrow him and he tortures one of them, named D-16, for refusing to bow to him. Sentinel also sends his second-in-command Arachnid to kill the others, only for her to be captured and forced to reveal the truth about Sentinel to everyone to start a revolution. Sentinel begs D-16 not to kill him by offering to make him his Viceroy but D-16 just wants revenge. When D-16's friend Orion Pax tries to convince D-16 not to kill Sentinel, D-16 ignores him and shoots at Sentinel but Orion puts himself between Sentinel and D-16's gun so Orion gets shot instead. Then D-16 breaks Sentinel in half, tears Sentinel limb from limb, puts Sentinel's transformation gear inside himself and renames himself Megatron. Megatron kills all of Sentinel's bodyguards and tries to make himself dictator of Cybertron. Orion Pax comes back to life as Optimus Prime and exiles Megatron for being like Sentinel.

## References
## Other websites
* 
* Sentinel Prime Character Page - Transformers Animated.com