hako clone animated sentinel

Many times, brash, leap-before-you-think types learn a lesson from their misadventures, and use that knowledge to grow into more mature, well-rounded fighters, even into leadership roles.
And sometimes, they learn the wrong lesson (or the right lesson the wrong way), and turn out like Sentinel Prime.
Sentinel was once the impulsive type, until a disastrous "unsanctioned" mission he'd suggested with his best friends Optimus Prime and Elita-1 ended in the loss of Elita. Though both bots carried the grief, Sentinel blamed Optimus for abandoning her. When Optimus officially took the blame for the mission (and Sentinel failed to speak up for his part of it), Sentinel placed all his anger on his former friend, and drove himself to climb the Autobot ranks into the Cybertron Elite Guard through strict adherence to military protocol.
The end result is an Autobot who could be one of the Autobots' greatest assets, but he's such a jerk that it's hard to see how. His expandable Skyboom Shield is virtually impenetrable, and he's a strong combatant and utterly tenacious hunter. And he seems to have Cybertron's best interests at heart... but his perception of "best interests" is definitely skewed.
To his core, he's still the same smug, act-first-think-later-maybe bot he was before, only far more focused. Despite the "stickler for the rules" aspect of his personality that has come from the loss of Elita, he seems to use the rules largely to bully his way of doing things on others. He really can't handle the unexpected, thanks to a distinct lack of genuine field experience and inability to improvise like others in the Guard. Thanks to that one fateful trip to Archa Seven, he has a severe phobia of organics, and a burning desire to further humiliate Optimus. To his credit, he would never actively sabotage another Autobot... but he sure will make their lives a living hell if he thinks he can get away with it.