Sentinel Mark IIn the alternate timeline version of the '70s, Bolivar Trask received the government greenlight to begin producing anti-mutant security forces in the form of these towering robots known as Sentinels. The image depicts the Mark I variant and over the years there are other, larger versions. We've yet to see the massive Mark X Sentinels from the post-apocalyptic future.
- The first Sentinels (Mark I model) released in 1973. A year later the government allowed them to be deployed in highly populated cities and to serve as part of the President’s security attache (beginning with Nixon).
- Between 1973 and 1996, Trask produced 8732 Sentinel Mark Is for the governments of the United States, China, Russia, Israel, Saudi Arabia, France, India and the United Kingdom.
- Production on the Mark I has shifted to the new Mark X: “These highly anticipated units will combine next-generation nanotechnology and bioweapon breakthroughs, promising an even brighter future for the human race.”