This is the first movie where they really play no role at all. Lockdown, bad-ass main villain, is working for the Creators. KIS is a company using transformium to reverse engineer Transformers, supposedly only using Decepticons and we find out that yes the indeed are, but are also using Autobots to create their new "robots". Like in Animated the cartoon series, Megatrons head, thought to be "dead" is still active and creating himself a new body. After Galvatron (Megatron) comes to life, he activates the other 50 bots that were built including multiple Stingers and a if you caught it Shockwave with two heads, but Galvatron never gets into the whole Decepticon act. He's angry and wants the seed and to destroy Optimus Prime, but doesn't call upon any Decepticons. I liked this movie, I think there is a lot of fat that could be trimmed, but when I saw the movie a second time and really paid attention to certain plots/characters it's really good. If you shorten the beginning and take away a lot of the early human "development" it would have been great!