Sentinel Prime is the main villain in the 2011 Michael Bay film, Dark of the Moon. He is voiced by Leonard Nimoy.
- The original leader of the Autobots
- Possibly the most uninspiring leader ever
- Abandoned his compatriots to forge a secret alliance with Megatron in another galaxy, when they could have just told their respective sides to end the war
- His existence completely negates and retcons the entire plot of the previous movie because The Fallen outright said Optimus Prime was the last Prime
- Kicks the shit out of Optimus around the 90-minute mark of the movie, and could easily kill him, but doesn't because.........reasons
- Believes that the needs of the many outweigh the needs of the few, despite the fact that he is going to sacrifice 7 billion lives to save a few thousand robots
- Has a beaded beard, which makes about as much sense as Jetfire having a beard and cane