Autobot Sentinel Prime I'm gonna go out on a limb and say that Sentinel Prime was more ruthless than Megatron was in all 3 movies. How can an Autobot be more deceptive than a Decepticon? Well DOTM Sentinel Prime answers that question. If you can't trust an Autobot, especially a Prime, who can you trust? It kind of reminds me of the LongArm Prime/Shockwave situation from TF Animated.